OneRepublic and Selena Gomez & the Scene have been announced as performers for the 2011 Teen Choice Awards, which are set to air on FOX on August 7.

Gomez is one of the show's top music nominees. She's up for Choice Music Group with the Scene, Choice Music Single for ‘Who Says,’ Choice Love Song for ‘Love You Like a Love Song,’ Choice TV Actress and Choice Female Hottie.

OneRepublic are contenders for Choice Rock Group and Choice Rock Track for 'Good Life,' categories in which the band competes against heavier-sounding acts like My Chemical Romance and Foo Fighters.

The show also announced that Gomez's boyfriend, Justin Bieber, will appear on the broadcast, though he won't perform live. Other musicians and actors scheduled to appear include Rebecca Black, Avril Lavigne, Kat Graham, Joe Jonas, Cameron Diaz and the Kardashians.

We already know one guaranteed winner for the Teen Choice Awards -- Taylor Swift will be taking home the Ultimate Choice Award.

Watch the Selena Gomez & the Scene 'Who Says' Video