The 2004 bash, held this year in Miami, features performances by Alicia Keys, Usher, Nelly and Christina Aguilera, Hoobastank, Jet, Lil Jon, Petey Pablo, Jessica Simpson, Terror Squad with Fat Joe, Kanye West, Yellowcard, the Ying Yang Twins and Dave Chappelle. Jay-Z leads the field with six nods for his "99 Problems" video, followed by Beyonce, No Doubt, OutKast and Usher, who each have five. Presenters include Hilary Duff, Paris Hilton, Jennifer Lopez, Will Smith and Jon Stewart.