OneRepublic and Selena Gomez &The Scene are slated to perform at the show, to air live Aug. 7 on Fox. Jason Derulo will also hit the stage.
Justin Bieber, Cameron Diaz, Chris Hemsworth, Kim Kardashian, Khloe Kardashian, Kourtney Kardashian, Victoria Justice, Ed Helms, Lucy Hale, Shaun White, Rose Byrne, Paul Wesley, Harry Potter star Tom Felton, Kat Graham, Christopher Mintz-Plasse and Shane West are all slated to attend.
The net also announced the nominees for its final voting category of the summer, Choice Vampire: Nina Dobrev, Robert Pattinson, Nikki Reed, Alexander Skarsgård. Ian Somerhalder and Paul Wesley.
Source: The Hollywood Reporter