Miley Cyrus and the casts of Twilight and Glee to Appear on Teen Choice 2009!

Miley Cyrus is set to perform her newest single, "Party in the U.S.A.," at Teen Choice 2009 aing Monday, Aug. 10 (8:00-10:00 PM ET/PT) on FOX. Additionally, the casts of Twilight (Robert Pattinson, Kristen Stewart, Taylor Lautner, Ashley Greene, Nikki Reed and Kellan Lutz) and FOX's new comedy series GLEE (Lea Michele, Cory Monteith, Jenna Ushkowitz, Chris Colfer, Amber Riley and Kevin McHale) will appear on the two-hour special. The Jonas Brothers are hosting as Teen Choice 2009 celebrates the hottest teen icons in film, television, music, sports and fashion. The coolest stars will receive coveted Teen Choice Surfboard awards in categories such as Choice Hotties, Choice Movie Liplock and Choice Twit. Also scheduled to appear are: David Beckham, Zac Efron, Megan Fox, Cameron Diaz, Jennifer Morrison, Keke Palmer, Alexis Bledel, Chace Crawford, Leighton Meester, Ellen DeGeneres, Ashley Tisdale, Kristen Bell, Jordana Brewster, Vanessa Hudgens, Shawn Johnson, Daren Kagasoff, Kim Kardashian, Jennette McCurdy,Emma Roberts, and more.