Miley Cyrus hosts the 10th annual gala honoring achievement in entertainment, sports and fashion. Mariah Carey is slated to perform, and the Jonas Brothers field viewer questions. Also scheduled to appear: Mischa Barton; Drake Bell; Kristen Bell; Chris Brown; Sophia Bush; Steve Carell; Chace Crawford; Zac Efron; Selena Gomez; Josh Holloway; JoJo; Scarlett Johansson; Minka Kelly; Jesse McCartney; Chad Michael Murray; Danica Patrick; Hayden Panettiere; Jaime Pressly; Ryan Sheckler; Brittany Snow.