Perry to perform at Summertime Ball
Katy Perry and Justin Bieber are among the latest names to play at the Capital FM's Summertime Ball.
The two US stars will join Coldplay, The Wanted, Jessie J, Ed Sheeran and Example at the pop gig at Wembley Stadium on June 9.
Usher, Flo Rida, Kelly Clarkson and Pitbull are also taking to the stage for the show, which will support charity Help A Capital Child.
Presenter Dave Berry, who announced the performers, said: "The secret's out. The best ever line-up for the Summertime Ball is finally out there. It doesn't get much bigger than this and I can't wait to be there!"
More performers will be revealed in due course.
Tickets for the Summertime Ball are available now from www.capitalfm.com and the ticket hotline - 0330 33 33 958.