Although Rush Limbaugh doesn’t actually work from a bunker, he does have a bunker mentality. His studio is on the third floor of a (purposefully) anonymous building 100 yards off the white sands of Palm Beach, Florida, and about a mile from his gated mansion (the one next to Chuck Norris’s). Along with the Gulfstream jet (cost: $54 million), fleet of sports cars and eight-year contract, worth $400 million, this mansion is his reward for being the most listened-to talk-radio host in America, a title he has held for 20 years.

But it is also his compensation. Professional Right-wing controversialists do tend to upset people, and Limbaugh has had his share of death threats. He has also had his quota of criticism from the media, or the liberal media, as he tends to call it. He hates interviews and has rarely given any, though he does have a soft spot for this newspaper, because it was once owned by his sometime friend and neighbour Conrad Black (currently serving a 6½-year jail sentence for fraud; Limbaugh wrote a letter to the judge attesting to Lord Black’s good character).

The ‘drive-by media’, as Limbaugh also calls it, came down to Florida looking for him when he insulted Michael J. Fox a couple of years ago – by saying the actor was hamming up his Parkinson’s disease for political gain after he appeared in an appeal for embryonic stem-cell research. They came back a few months later when Limbaugh was arrested for ‘doctor shopping’ painkiller prescriptions; that is, persuading several doctors to give him overlapping ones. He pleaded not guilty and cut a deal; the charges were dismissed after 18 months on condition that he continue rehabilitation and treatment with a therapist. The press staked out his mansion on both occasions, but never found his studio on this palm-fringed boulevard. You wouldn’t know it was here.

He calls it his ‘Southern Command’, having spent most of his career broadcasting from New York, and describes it on air as ‘heavily fortified’, yet when you travel up in a lift and step into a glass and leather reception area, there isn’t even a receptionist, let alone a security guard, just several white locked doors and a CCTV camera that follows you. One of the doors buzzes. I am expected.

On the walls of the corridor there is evidence of Limbaugh’s considerable power and influence, and his friends in high places. Here a framed picture of him with George Bush. Here one of him with Donald Rumsfeld. Here he is with Hamid Karzai, the president of Afghanistan.

There is a humidor – Limbaugh is a connoisseur of cigars – and a bust of Churchill. There is also a bust of Beethoven, which has a plaque reading: ‘A genius who produced masterpieces without hearing.’

Limbaugh became almost completely deaf at the age of 50, but is able to hear callers now thanks to a cochlear implant – an electronic device which stimulates nerves in the inner ear. It explains his way with a monologue, which actually is a dialogue with himself. But even if he could hear, he probably wouldn’t listen. Rush Limbaugh is a talker, not a listener. He keeps it up for three hours at a stretch, five days a week from noon until three. There are commercial breaks and phone-ins, but mostly it is him delivering homilies on politics and current affairs, extemporaneously. His fluency is breathtaking.

Some 20 million Americans tune in to hear it on 600 stations across what he calls ‘this fruited land’. And he says he’s not retiring until everyone agrees with him.

He is on air now – I can hear him over the speakers – ‘Welcome back, this is Rush Limbaugh, your shining light, the doctor of democracy, the all-knowing, all-sensing, all-caring Maha Rushie…’ I get slightly lost as I’m looking for the control booth and end up in his private washroom. There are several big black polo shirts on hangers and, in his medicine cabinet, cold remedies and bottles of Listerine and Drakkar aftershave, but no painkillers. That ship has sailed, it seems.

For the next two hours I sit behind a glass panel and watch him perform. Though it is radio, his is a physical performance. He raises his arms and shakes them in mock frustration. He takes his glasses off and pinches the bridge of his nose. He drums his fingers, as you can sometimes hear on air. Though he doesn’t use notes he does have some papers on his desk which he taps as a form of punctuation, and sometimes he will crumple them up in disgust, another sound effect.

In the corner of his studio he has a standard bearing a silky Stars and Stripes. Behind his desk, there is a neon replica of his signature. At 57, he is looking fitter than he has done for a long time, having shed a hundredweight (he weighed 23 stone at one point).

His hair is slicked back and he is dressed in a black polo shirt and deck shoes without socks. There is a rolling musicality to his voice.

His tone is warm and confidential. He has the rhetorician’s habit of repeating himself three times in three different ways.

Today, as usual, he is riffing about Barack Obama – ‘the Lord Messiah, the merciful, the acting President…’ – whom he dislikes intensely.

When Former Secretary of State Colin Powell announced a few days ago that he would be breaking with his party to vote for Obama, Limbaugh said it was only because he was black. Groan. He was being insulting, of course, on many levels, to both men, but at least he was being consistent with the Limbaugh world view, the view of the fabled ‘angry white man’. Indeed, it would have seemed hypocritical of him to start making compromises on the grounds of sensitivity at this stage in his career.

Besides, he doesn’t go easier on the McCain camp. He described the Republican candidate as a phony conservative and, when Sarah Palin first appeared, dismissed her as ‘some babe McCain met at a convention’. He has come round to Palin since then, saying that she ‘kicked Biden’s butt’ in that vice-presidential debate. His politics are closer to hers than McCain’s. And ultimately he would rather have McCain for all his faults than Obama. ‘McCain’s right,’ he said on air recently. ‘We do have them right where we want them because they think it’s over.’ Note the ‘We’. Limbaugh does not pretend to be impartial.

Inside the control booth there is a staff of three: Jim, a sound engineer wearing headphones; Dawn, a stenographer with long blonde hair (who sends Limbaugh real-time transcripts of on-air phone-ins), and his long-time producer Bo Snerdly, a tall, well-cushioned Afro-American with an affable manner, a flat cap on backwards and spectacles dangling from a cord around his neck.

Limbaugh does not have sidekicks with him on air, but he does keep up a running conversation with Snerdly, who is almost as Right wing as he is. They banter via an internal talk-back circuit. Snerdly has his own twice-weekly spot on air in which he introduces himself as an ‘African-American-in-good-standing-and-certified-black-enough-to-criticise-Obamaguy.’ It is a deliberately insensate but amusing take on the race issue in this election. What Left-wingers, or ‘Rush-deniers’, as he calls them, don’t get about the self-aggrandising Limbaugh is that he is first and foremost a satirist: funny, self-mocking and entertaining. He couldn’t have held his audience for 20 years if he was only nasty, bigoted and extremely Right wing.

The broadcast over, I join Limbaugh in the studio and ask if he ever has off days when he’s not in the mood. Though he can hear, thanks to the acoustics in here, he stares straight at me, lip-reading. ‘I have days where I feel I’ve left half my brain at home and I’m not functioning 100 per cent, but I don’t think the audience would ever know it, and there’s never a day I don’t want to do it. I prep it, but I don’t think about it until it starts. At noon today I had no idea what the first thing was I was going to say until about 20 seconds into the theme music. It’s improv. Stream of consciousness. That little pressure improves my performance. I do my best, most expansive thinking when I am speaking. I get on a roll.’

He surely does. Limbaugh is always a factor in American elections.

When the Republicans won the House of Representatives in 1994 for only the second time in 50 years, they made Limbaugh an honorary member of Congress. If by some fluke the Republicans win this time, in contradiction of the polls, will that be partly down to Limbaugh?

‘That’s so hard to measure,’ he says.

He’s being falsely modest and possibly disingenuous. One of his biggest successes in this election cycle was Operation Chaos, a radio campaign designed to encourage Republicans to vote for Hillary Clinton and prolong internecine fighting among Democrats. Karl Rove, ‘the President’s brain’, reckons it helped tilt Texas for Clinton. She herself said as much the day after the vote: ‘Be careful what you wish for, Rush.’ Berkeley is doing a course study on it.

‘I came up with Operation Chaos because we were facing a Republican primary that was over, with most of my audience dissatisfied with the choice. My audience wasn’t up. Excited. Jazzed. I figured we had many more months of the liberal media salivating over the Democratic primaries on the cable networks and that that could be divisive. I don’t want Obama to be President, he would be a disaster, but I do want him to be bloodied up politically, be forced to acquit himself to a political audience that isn’t sycophantic. Someone had to do it.’

But Obama is the Democratic presidential candidate now and I wonder whether the race issue makes Limbaugh nervous. After all, at a White House correspondents’ dinner during the Clinton administration, the President joked that Limbaugh had stood up for Attorney-General Janet Reno, but he ‘only did it because she was attacked by a black guy’.

(The ‘black guy’ being Representative John Conyers.) Limbaugh was in the audience, and he was livid. He demanded, and received, a White House apology. ‘There is nothing worse than being branded a racist,’ he said afterwards.

On the race issue now, he reckons he has nothing to feel nervous about. ‘Obama’s people are trying to silence any criticism of him by implying it would be perceived as racist. It’s a form of intimidation but I’m not going to be intimidated by them.’

Until 1988, when Limbaugh more or less invented the talk-radio format as a political tool, the liberal media in America had a monopoly, he reckons. ‘The reason my show was successful was that so many people with a conservative viewpoint did not think it was being reflected in the media. I validate what they already think.’ He reckons he is not always preaching to the choir, though. ‘We get Democrats. Calls from people who disagree with me all the time. Last week I had a call from a woman in Dallas who said I was causing her high blood pressure because she couldn’t stop herself listening to my show. The doctor told her to stop and she wouldn’t.’

His audience is now 12 times the circulation of The New York Times, he tells me. ‘And you can add up CNN, MSNBC and Fox, and my audience is 20 times that. They have no pretence of objectivity. They are activists now and they make no bones about it. CNN, MSNBC and Fox all opinionise. Like I do. They acknowledge this, and so it has become a battle between the two medias. The liberal media see this Obama candidacy as historic because race is a big deal to them. They think this country committed Original Sin. I actually believe that most of their support for Obama is that they are creaming in their jeans about the historical nature of the campaign. They want to be a part of it. They want to make it happen. They want a stake in it. They want to be able to say they did it if Obama wins.’

Well, he is going to win, isn’t he? ‘No. I don’t see it, Nigel. I think he’s been dead in the water since the primaries. He is going to need to be up 10 to 12 points to win by three or four. Don’t forget that Hillary winning was a foregone conclusion, too. If the polls had been right it would have been Giuliani versus Hillary. That’s why polls a year out are worthless. Obama is going around as the acting President. It’s off-putting. Unionised blue-collar Democrats didn’t vote for him, they voted for Hillary.’

Wasn’t that to do with race? ‘No… well it might be to a certain degree, but there was never any substance to his speeches, just soaring rhetoric. That guy can say nothing better than anyone I have ever heard say nothing.’ He drums his fingers. ‘My take on this is that we are all Americans and I am sick and tired of hyphenated Americans. Afro-American, Hispanic-Americans.

‘I am truly colour blind and I wish everyone else was. We Balkanise when we say only women can represent women in Congress and only Jews can represent Jews and only blacks can represent blacks. It’s bullshit. We all want the same things. Prosperity and a decent education for our kids. Treating this country like it is stuck 50 years ago is bullshit; we have made more progress than anyone over this. Get over it. If Obama says stupid things I’m not going to say they are not stupid because he’s black. He’s running for President, for God’s sake. It’s the Left who has been racist by agonising about whether he is black enough. Is he authentic enough? Does he have a civil rights record? For me he’s a liberal. That is reason enough to oppose him.’

Limbaugh thinks there is a war going on between people like him who want small, efficient government and people who want a powerful state that decides who gets what. ‘And they use hoaxes like global warming to advance their agenda of higher taxation and bigger government.’

Oh dear. You don’t have to agree with his red-meat views to find them insightful. They represent, after all, the authentic voice of conservative, and neo-conservative, America. But there is one issue about which I think he is dangerously wrong. Global warming. After all, I point out, 98 per cent of the world’s leading scientists in this area don’t think global warming is a hoax.

He stares at me. ‘Nigel, man-made global warming is a 100 per cent, full-fledged, undeniable hoax.’

That’s his opinion. ‘No, it’s not even arguable in terms of science.’

Of course it is, I say, and he’s being deliberately provocative to say it isn’t. ‘We don’t have the power to make cold weather warm. We can’t make warm weather cold. We can’t produce rain clouds. We can’t steer hurricanes, we can’t produce diddly squat and the idea that only advanced democracies are doing this with their automobiles is absurd.

Global warming is a religion. It has what all religions have which is faith, because no one can prove their religion. It has a Garden of Eden element, destruction brought by humanity then redemption for our sins by paying higher taxes and getting rid of our cars and planes.’

Does part of him go after a subject like that just to wind people up?

‘No, I believe it. I hate people who feel rather than think. Most people feel they don’t matter. When they are told they can save the planet, well, that gives their lives meaning. These stupid ribbons – breast cancer, Aids awareness, they say – “I care more than you.” ‘ He drums his fingers on the table again.

Limbaugh doesn’t give the impression of having doubts, but does he?

Does he have long nights of the soul? ‘I’d only have those if I had lied, made something up that I don’t really believe, for an illicit motive. I won’t be deliberately provocative just to get people to listen.’

Was there a point at which he decided he would have to thicken his skin if he was going to last in talk radio – not take insults personally, I mean? ‘Insults are badges of honour. There is nothing anyone can say that would offend me. Prior to doing this show no one hated me. No one thought I was a racist, sexist or homophobic bigot.

No one thought I was a hate-monger. I was not raised to be hated. I was raised to be loved. Within six months I was getting death threats.’

For all his claimed equanimity, there is a residual paranoia, vulnerability and vanity that floats around Rush Limbaugh like a toxic cloud. He hates being photographed, for example, because: ‘They are going to try to get the most embarrassing or unflattering shot of you they can.’ They. Always they. These dark forces out to get him. I ask about the insecurities that lay behind his dependency on painkillers.

There was pain to kill, after all, and it wasn’t physical. ‘That’s all in the past,’ he says. ‘Done. The rehab was in Arizona. A spartan place called The Meadows. Not one of these half-assed places for celebrities. It was five weeks and I really got into it. Very educational for me to learn about myself. It was inspiring. I can’t imagine taking a pain pill now. It holds no attraction. I haven’t had a relapse or craving since then. I had to talk to a therapist for 18 months afterwards. Never done that before. Thought it bunk. Actually that helped.’

Born into a family of lawyers, Limbaugh obtained his radio licence at the age of 15 and began Dj-ing on a local radio station. One insecurity that dates back to that time is that he was wounded by his father’s disapproval of his chosen profession. He was also miserable when his father insisted he attend college. Under protest, he enrolled at Southeast Missouri State University, where he lasted a year before dropping out. After that he was fired six times by radio stations and other employers. It was a wobbly start and, as a defence mechanism, he seems to have acquired an ultra-confident alter ego.

Nevertheless, he tells me that when he’s at home, when he can drop his public guard, he can feel flat. ‘Mentally, I’m zapped after this show every day. I don’t do anything for three hours. I go read a novel or play golf. I won’t speak a word because I don’t use the phone. Sure I can get melancholy.’

I never had him figured as an emotional man. Isn’t his whole shtick that you have to think not feel? ‘Don’t cry easily. Get close to crying then I stop it. A movie or a book will get me misty-eyed. It’s always happy ending good stuff that gets me crying, not bad stuff.’

‘Last time?’ Long pause. ‘Last time was when my little cat died. Five years old. Had a stroke. I had two cats and this one had the personality and almost humanlike behaviour. Pets are like sports: you think you can invest a lot in them without consequences.’

And like wives. He has been married three times, though he hasn’t had any children. He met his current girlfriend, a West Palm Beach events planner, last year. When I ask about the ups and downs in his personal relationships he hesitates again. ‘I would find myself very difficult to live with because I am totally self-contained and resent having to do things I don’t want to do. Now I can choose. When I’m put in a position where I don’t want to be there, I make sure everyone else is miserable.’

That’s some confession, even for a thick-skinned man. He seems to know himself well, knows he can be selfish and that he cuts quite a lonely figure – just him and his remaining cat rattling around in that big house. He also knows he is easily bored. ‘I don’t have guests on my show because I don’t care what other people think,’ he tells me. ‘Most guests are boring.’ But it’s not only others he is bored with, it is also, perhaps, himself. This may be what explains his recklessness, his bravado, his determination to say the unsayable. And perhaps it also explains why he never misses a beat, until you draw him out about himself – how he is difficult to live with, how he cried when his cat died, how, to his surprise, he found it helpful talking to a therapist. Only then does he hesitate. As we part he bets me a cigar from Desmond Sautter’s of Mayfair that Obama won’t win. I’d better go and choose one.

J.

James Blunt

It could be the homes around the world; his military bearing; or that he’s our biggest musical export since Elton. For whatever reason, being called annoying, a philanderer or – worse – middle class doesn’t exactly keep James Hillier Blount awake at night. Nigel Farndale met him

It’s not the sight of the groupies that haunts me, but the sound, or rather the absence of sound, as they ghost past us on their way up the stairs to the dressing-room. It takes me a moment to figure out that the reason they aren’t talking to each other is that they don’t know each other. One of the band members, the keyboard player, I think, has picked them from the audience on the basis of their looks. Half-a-dozen of them, all in their late teens and early twenties, and all, surprisingly, in pretty frocks, as if they were going to a Sunday school meeting. They have been separated from their friends like lambs weaned from their mothers. The silence of the lambs.

The ‘us’ they are filing past is James Blunt and me. He has a bottle of beer in one hand, a cigarette in the other, and not a hair in place – tousled just so, like a Renaissance painting of John the Baptist – but they don’t realise it’s him because he has changed out of the suit he was wearing on stage and is now in jeans, T-shirt and leather jacket, as well as a pink feather boa and star-shaped novelty sunglasses. But I’m getting ahead of myself. This is the end of the day; we need to go back to the start, well, to the middle, when the seats are empty and the Texan sun is at its most unforgiving.

A barefoot and unshaven Blunt is wearing normal sunglasses and shorts as he plays his piano, strums his guitar and sings his plaintive songs into the microphone for the sound check, all the while looking out with his soulful eyes over an empty, open-air arena in Houston. At 5ft 7in, he’s not a tall man, but he has presence and an unaffected manner – a certain maturity, too, one that you wouldn’t normally associate with a pop star in the ascendant.

But then he is 34 and this is his second career, his first being as an officer in the Household Cavalry. He joined after graduating from Bristol University with a degree in sociology. He became a champion skier for the Army and not only saw active service in Kosovo, but also guarded the Queen Mother’s coffin when she was lying in state.

Tonight he will be supporting Sheryl Crow, though, since his second album ‘All the Lost Souls’ and the single from it, ‘1973’, went straight to number one in America, he is arguably the bigger act these days. Indeed, not since Elton John has there been a more successful British singer-songwriter in the States.

His first album, ‘Back to Bedlam’, also went to number one over here, as it did in 18 other countries, making it the biggest-selling album of the millennium. It even entered the Guinness Book of Records as the fastest-selling album in one year. But it was his first single that really put him on the map. You’re Beautiful became the sound of that summer. It was everywhere, and still is – having become a favourite at weddings, funerals and bar mitzvahs. I even heard a brass band playing it at an agricultural show in the Yorkshire Dales this summer.

As well as millions of sales, James Blunt has won Brit awards, Ivor Novello awards, MTV awards and various Grammy nominations. In terms of credibility, he’s headlined at Glastonbury and won the respect of the world-weary music press. Yet not everyone loves him, as he points out when we get something to eat in the canteen area back stage.

‘After Back to Bedlam really started selling,’ he says, ‘there was this sudden aggression towards me in the UK, for whatever reason, and that focused my mind, made it clear to me what I was doing and why I wanted to do it. I write songs for myself. I don’t write them for you, or for anyone else, I write them because I have experiences that I need to process. I don’t have the answers all the time, but I do have lots of questions, and I express them in the songs I write.’

He is, I think, alluding to a poll last year of ‘the most annoying things in life’, which put him at number four, just behind cold-callers and queue-jumpers. ‘I haven’t met anyone who voted in the poll, have you?’ he says when I mention this. ‘That poll probably came from a website that was after some publicity. You and I could do the same poll very quickly right now and it would count as a poll. We could do one about annoying newspapers, for example. I promise the Sunday Telegraph wouldn’t be in my list. My parents take it.’

His father, a retired colonel in the Army Air Corps, manages his son’s finances. His mother arranged the purchase of his six-bedroom villa in Ibiza (he also has a chalet in Verbier and recently bought a place in Chelsea). ‘I’m not married,’ he says, ‘and so the support structure in my life is my parents. I’m closer to them now than I have ever been.’

He certainly isn’t married, as the photographs of him emerging from nightclubs with various high-profile women on his arm attest. Tara Palmer-Tomkinson was probably the best known socialite, Jessica Sutta, of the Pussycat Dolls, the most glamorous. He also seems to be photographed regularly cavorting on beaches with bikini-clad models such as Petra Nemcova, whom he dated and then dumped – unceremonious dumping being his way of ending relationships, according to the tabloids. He once said he found himself in a swimming pool in LA with nine naked women. ‘I was the only bloke. It was the only time I wished my mates were there, purely to spectate. I had arrived. It was a moment.’

Now he says of the tabloid interest in his peripatetic love life: ‘Last week I went to my home in Ibiza and was photographed by the paparazzi in my swimming trunks with girls. What is the point of that? I’m not that bothered, but maybe the media should be concentrating more on global warming or the Russian invasion of Georgia.

‘Looking at me in my swimming trunks is not a great sight. It’s a waste of time. There generally is a long lens pointing at me wherever I go, these days. I’m comfortable with it. I appreciate how things work. But my record label said something about my always being photographed coming out of nightclubs and I thought, “But this is what I do. I was doing it before the second album came out, so what is different now? You didn’t tell me to stop then.” I’m not going to change my life because of these people. I don’t see why I should.’

His label also gets him to dye his grey hairs and be enigmatic about his love life, which is an old tactic dating back to the Beatles – they had to pretend they didn’t have wives and girlfriends so that fans could fantasise they were in with a chance.

Actually, at the time of going to press, Blunt seems to be going out again with one of his old flames, Verity Evetts, an Oxford-educated barrister. He has also stayed friendly with some of his other exes, the socialites at least. He told one – an ex who got married not long ago – that he doesn’t feel ‘centred’ at the moment and would like to get married as well. Then again, he also said that he never tires of singing You’re Beautiful night after night because it gets him laid night after night.

Either way, he tells me he has grown used to the idea that his mother will probably find out from the papers what he has been up to, and with whom, before he has had a chance to tell her. ‘And my [two] sisters are quick to email me about things in the papers, laughing their heads off. I get healthy, ritual abuse from them, and give it back myself.’

As we are talking, I can’t decide whether the way Blunt smiles all the time is disarming or disturbing. He’s like a victim of a religious cult, smiling at the beginning of the sentence and at the end. I guess he has a lot to smile about, but also I sense a great deal of insecurity to disguise.

Then, I’m distracted by the sight of Sheryl Crow playing table tennis across the room. She has been holding her adopted son in one arm as she bats with the other, and now, even more distractingly, she is heading straight for us. ‘Are we going to have one of our little conversations on stage again tonight, James?’ she says. ‘That flirting thing. I think it worked well last night.’

They discuss the duet they will sing – a cover of Cat Stevens’s The First Cut is the Deepest – then we both watch her shimmy away, her blonde curls bobbing. ‘She’s very down to earth,’ he says. ‘I’d met her a couple of times, which was why she asked me on this tour. We do end up playing a lot of table tennis on the road. We’ve done 117 shows so far this year, in 117 cities, and there are a lot of hours to fill in the day.’

As he sleeps on his tour bus with his band, one city tends to blur into another. When I joke that he is in Cincinnati now, he looks genuinely confused. ‘No, this is?… Oh, right. Actually, I always get the tour manager to say where we are just as I’m going on stage. I still managed to get it wrong the other night, saying “Hello Dallas” when I meant Austin. I’m surprised I got out alive.’

He is funny on the subjects of things that go wrong. ‘People are normally surprised by my show, which is more energetic than you might think. Jumping on the piano. Jumping out into the audience and running up and down the aisle high-fiving them. But going off the stage can be quite dangerous. I broke my finger once. My legs carried on when I jumped off, and I smacked down on the ground. The spotlight was on me, and when I got back to the piano I hit the wrong note and thought, “Why did I do that?” And I looked down and saw it was because my finger was broken, sticking out an angle. Look,’ he says holding it up. ‘It’s still crooked.’

On another occasion, in Chicago, he jumped 8ft off the stage. ‘When I began running to the audience, a security guard stuck his arm out and I thought, “Does he want a hug?” Then next thing I know he’s rugby-tackled me. He wouldn’t release me and I was screaming in his ear, “I’m the f—ing singer.” I had to wait for the other guards to pull him off.’

I would have thought Blunt’s training in unarmed combat would have helped. I presume he still works out. ‘No, never. Couldn’t handle it. Too boring. I am a hyperactive person though.’ He likes an adrenaline rush, as well, having recently bought an 1100cc Moto Guzzi V11 Sport motorbike. There’s also the skiing, which he still does, and the riding. Actually, he tells me, he never really liked horses before joining the Life Guards. So why did he join that particular regiment?

‘Well, it is a reconnaissance regiment.’ But they are all so tall in the Life Guards, did that not make him self-conscious? ‘Some are. The Foot Guards tend to be taller regiments, though. The Life Guards take a few shrimps, as well. Besides, they are on horses, so height isn’t so important. Also being in that regiment had the benefit of being in Knightsbridge. I got a chance to be in London and meet people in the music scene.’ And groupies, as it happens.

As he paraded up and down the Mall in plumed helmet and shiny breastplate, girls would stick their phone numbers down his knee-length boots. But it was his time in Kosovo that really made girls swoon. He used to strap his guitar to the outside of his tank, because there wasn’t room for it inside. He had learnt to play the violin at five, the piano at seven and the guitar at 14, while a pupil at Harrow.

He writes his songs on piano and guitar. ‘But mainly guitar because it is easier to carry around. It’s like a child messing around with a toy. If a tune comes to me I don’t record it instantly. I think if I remember it, then it must be worth remembering, and if I forget it, then it was forgettable.’

Does he have any anxiety dreams about forgetting lines or chords? ‘Not yet. Perhaps I will tonight. Perhaps you’ve jinxed me. But audiences aren’t judgmental, and if things go wrong and you can look them in the eye, that is fine. The only people who are judgmental are the journalists. I will be conscious of you being there in the audience judging me.’

Blimey. Sorry about that. Is it true he signs breasts? ‘Not that I remember. Not that I’m fussy what I sign. A lot of men started coming to the shows after I appeared on Top Gear last year. That was such fun. I spun the car five times. I thought I might as well make the most of it. I am competitive.’

He recorded one of the fastest laps, but I’m surprised blokes didn’t think him manly before that, given his tour of duty in Kosovo. ‘It’s because I sing songs that are heart-on-your-sleeve and therefore I must be overly emotional. Nothing I can do about it. I could pose more, but I am comfortable with my masculinity.’

He has said that his lyrics are autobiographical, in which case, are we to assume that the lyric on his new album, ‘I killed a man in a far away land’, means he killed a man in a far away land? I only ask because in the past he has said that he would never try to exploit what he went through, what he saw. ‘You should ask any soldier how many lives he has saved. How they do it is no one else’s business. What I took from my experience in Kosovo is that you are told from one day to the next who your enemy is and it keeps changing. That’s what is happening in Iraq, too. I believe in looking people in the eye, looking for the common humanity.’

He is a great believer in looking people in the eye. He will use the phrase again later and it seems to reveal a Christ complex, or a John the Baptist one. That direct and challenging stare of his. It would also explain the hair.

It is time for him do some photographs before he goes on stage and, endearingly, he says he is ‘not fussed’ about the grooming he is offered before they are taken.

On stage his features contort with passion when he sings. The big video screen goes in tight on his face. His voice is by turns soft and tremulous and forceful, but always high. Having seen him in concert once before, a couple of years ago, I notice the tone of his banter has changed.

‘Wow it’s hot tonight,’ he says now. ‘I’m surprised any of you are wearing any clothes. We could all take them off and get friendly.’ It is suggestive, designed to get the teenage girls in the audience screaming. Before he used to joke about his ‘girlie voice’ and taking helium to get it that way, and being ‘a bit wet’ and the ‘housewives’ favourite’. I think now he has realised that, actually, he is a proper musician, a popular one, too, and that he doesn’t need to apologise for it.

Afterwards, back in the dressing-room, he strips to the waist as he talks because he wants to take a shower before going back on to do his duet with Sheryl Crow. ‘Things got a bit hairy out there when I jumped into the crowd,’ he says. ‘Did you see that? Some thought it was some kind of sport to grab me.’

I watch his duet from the side of the stage and notice he whispers something in Sheryl Crow’s ear and then she starts running her hands over his trousers suggestively, patting them. Afterwards, I ask what he said. ‘”Is now a good time to ask for your phone number?” She was checking my pockets, pretending to look for a pen.’

He shows me round the gold-coloured tour bus where he will be sleeping tonight as they drive to their next gig in Dallas. It is full of hi-tech equipment and is nicely air-conditioned but there isn’t much space in the bunks. ‘We do live in close proximity,’ he says. ‘Some of us stay up late. This is the crew end, they have to get up early.’

Where do the groupies go? ‘Never have groupies on here. Never. They’d only get in if we invited them in. But we’d only ever invite friends in.’

Does he sleep OK? I heard he has to take sleeping pills. ‘It is a bit of a rough sleep, but better than a hotel and taking planes all the time because you have to get to the airport two hours early, which is miserable. Then your flight gets delayed.’

He is drinking champagne from a plastic cup. ‘This is for your benefit,’ he says. ‘The tour management went out and bought a bottle of champagne because he thought I should be seen drinking it. Better for my image. Isn’t that sweet? Normally, we drink vodka and beer. In fact, I think I’d rather have a beer, now. Want one?’ He opens a well-stocked fridge then takes me to the back of the bus where there is some seating space. He has one small case which he pulls out from a cupboard. It continues a few pairs of socks, T-shirts and a spare pair of jeans. No photographs or mementos. ‘This is all I have for 14 months on the road,’ he says. ‘I’m not known for style.’

Does he know how much he is worth? ‘No I don’t, not very interested in it to be honest. I travel with hand luggage only. That is why I always seem to be wearing the same clothes in photographs. If a tabloid says my clothes aren’t fashionable or my hair looks stupid, I really don’t worry about it. Don’t have any hair gel.’

In London, he takes the Tube or the bus. He prefers pubs to restaurants. When he goes to Ibiza, he flies easyJet. Still, that’s at home. Presumably on the road he can afford to be more self-indulgent.

Another lyric that we can only assume is autobiographical is ‘I’ve taken a s—load of drugs’. It is. Though his only comment on the subject is that he has ‘a comfortable relationship with drugs’. His relationship with fame is less comfortable. Oscar Wilde said there were two forms of tragedy: not getting what you want, and getting it. Is that how it felt for him when he went to number one? ‘Actually, I don’t think I had been dreaming about it. Certainly, I hadn’t anticipated being so recognisable so quickly.

‘I do remember getting a phone call from the record company, who said both the single and the album have gone to number one, and thinking, “S—, this is not what I expected.” I hadn’t prepared myself for it. Number two is great. Number two is nice. I sensed then it would mean having to change from being a musician to being a celebrity and that that would be a change for the worse. Fame doesn’t affect me, but it does affect everyone else around me. As for celebrity, it is the worst invention of the modern world. Gossip columns treat your life as if it were a cartoon. Relationships reduced to cartoons.’

Although there are other public-school bands around at the moment – Radiohead, Coldplay – Blunt seems to have suffered more than most from a perception that he is too posh to be credible. His family name is Blount (and his middle name Hillier), but he changed it to Blunt to sound, well, blunter and more proletarian.

When he tells me he would nevertheless still send a son of his to Harrow – ‘I think I would. I think I would. Public schools make individuals rather than sheep’ – I ask what he makes of the mood change now that the old Etonian David Cameron has made it OK to be posh. ‘Is it? I must come back to Britain immediately. Is it really safe to come back?

‘It’s not a dirty word to be posh, people come up to me and no one gives a damn if I’m posh. It’s about having a normal conversation and looking people in the eye.’

We head back to the dressing-room where he puts on his feather boa and novelty sunglasses then we wander back downstairs to have a word with Sheryl Crow, who is signing autographs. This is the moment at which the keyboard player says: ‘This way to the good-time room girls’ and the silent groupies dutifully appear.