Last updated at 06:42

Pictures from Radio 1's Teen Awards 2011

Thousands of teenagers hit Wembley stadium to check out top acts including One Direction and Joe Jonas
Hosts Nick Grimshaw and Mollie King from The Saturdays take to the stage to introduce an impressive line-up at this year's Teen Awards. Mollie had four outfit changes throughout the night!
Mollie King and Nick Grimshaw
Cher Lloyd wows the crowd in a colourful outfit as she performs her hit Swagger Jagger
Cher Lloyd
Harry, Zayn, Louis, Liam and Niall of One Direction performed their hit single What Makes You Beautiful
One Direction
They even had an outfit change...
One Direction
...much to the support of their screaming fans!
Pixie Lott sports a pair of cat ears for her performance
Pixie Lott
Ed Sheeran performs his hit single The A Team
Ed Sheeran
Tom Daley accepts his award for Best British Young Sports Star
Tom Daley
Pixie Lott and radio presenter Aled Jones give 13-year old Alec Martin his Teen Hero award. Alec, who had cancer, has raised thousands of pounds for good causes
Pixie Lott and Aled Jones with Alec Martin
Screaming fans are showered with confetti as they watch last night's closing performance
Fans watch the finale