By Sarah Jane Griffiths
Newsbeat entertainment reporter
Kaiser Chiefs have played their first ever headline slot at a UK festival - and if the 50,000 strong Isle of Wight crowd were anything to go by, they didn't disappoint.
The band opened their Friday night set with Everything is Average Nowadays, but the big sing-a-longs came for Ruby, I Predict a Riot and The Angry Mob.
The few lesser known tracks also went down well - especially You Want History - which had so much percussion the band needed their tour manager on tambourine.
Frontman Ricky Wilson provided plenty of huge jumps and leaps - climbing up a 40ft lighting rig at one point.
Simon Rix, the band's bassist, said they were well up for the challenge: "Lots of energy, lots of running around and Ricky sweating profusely.
"We've headlined a few European festivals actually. We've done our own big gig at Elland Road, so we're used to a big crowd - we like it."
The band also used their headline slot to slip in a few sneek previews.
Rix added: "We've played some new songs¿ get them into people's heads so when they get the album they think, 'Oh yeah, I love this one'. They already think they love it."
Frontman Ricky Wilson gave the crowd a high energy performance
The Kaiser Chiefs might not be the most obvious choice to play beside The Sex Pistols and The Police at the top of this year's bill.
But Rix said he didn't think it was a bad thing: "When we got asked, the only people that were booked were the headliners and we thought that was good company to be in.
"The clientele here is more of a range of people. You do get kind of classic acts, I think that's more the kind of people that play.
"It sounded good, The Kaiser Chiefs, The Sex Pistols, The Police. Sounded like it might be worth doing."
It wasn't all about the Kaiser Chiefs though. There was lots of love too for acts like NERD, The Hoosiers and The Wombats.
Singer-songwriter KT Tunstall said she even got mobbed backstage: "I was being touched by so many people at once... it was quite exciting!
"I can quite happily get the number 18 bus or the tube when I'm at home so it's a bit weird!"
KT Tunstall said she wanted to play a "thumping" set
She belted out some of her biggest hits like Suddenly I See, before hot footing it off to Manchester.
Tunstall admitted she wanted to play a upbeat crowdpleasing set: "We completely boot out all the sensitive songs basically. The Other Side Of the World is left, I think that's it.
"It's really nice to play a really thumping set of all your up tunes."
The Edinburgh-born singer also said she was gutted she couldn't stick around: "I really want to see NERD and the Sex Pistols - that would be amazing.
"It really comes down to whether they're good or not. If they good everyone will be like, what a great idea to put on the Sex Pistols.
"If they're not it will be, 'Whose idea was that?'"
The festival luckily managed to avoid the dreaded rain - and there was even a bit of sunburn spotted.
The afternoon saw time for a few mass sing-a-longs courtesy of The Hoosiers - who covered The Cure's Love Cats - and definitely didn't need to hand out song sheets for Worried About Ray.
The Wombats' set got festival-goers bouncing along to the songs
There was also mass bouncing to The Wombats' 35 minute mini-set packed with tracks like Kill the Director and Let's Dance to Joy Division.
Frontman Matthew Murphy said: "It's pretty amazing that we got asked to play and we're very happy. It's great to be a part of it.
Dan from the band added: "Just looking back and thinking at one time boy Dylan and Free and Jimi Hendrix and all that have played here..."
The festival's Saturday's line-up included The Cribs, Kate Nash, The Enemy and The Zutons, Iggy and the Stooges, Ian Brown and the Sex Pistols.
The Sunday has The Kooks, Scouting for Girls and a headline slot from The Police, who'll be trying to go one better than The Rolling Stones who closed the festival in 2007.