Justin Bieber, Rihanna, JLS And Ke$ha Do The Capital FM Summertime Ball

Robbie Daw | June 8, 2010 11:45 am

The annual Captial FM Summertime Ball went down at London’s Wembley Arena on Sunday, and the pop extravaganza featured performances by Justin Bieber, JLS, Rihanna, Ke$ha, Usher, Pixie Lott and Jason Derulo. “It was terrifying,” said feather aficionado Ke$ha, who’s no stranger to the radio festival circuit, during an interview backstage. “It’s really fun to just go up there and be a smartass in front of 70,000 people.” Catch Ke$ha and Justin Bieber’s interviews, plus some of the performances, after the jump.

Justin Bieber performs “Baby”

Justin Bieber backstage interview

Ke$ha performs “TiK ToK”

Ke$ha backstage interview

JLS perform “The Club Is Alive”

Rihanna performs “Rude Boy”

Usher performs “OMG”

Jason Derulo performs “In My Head”