Guest Stars Adam Sandler as Himself Jessica Alba as Herself Steve Carell as Himself Chris Evans as Himself Jesse McCartney as Himself Drake Bell as Himself Emma Roberts as Herself Queen Latifah as Herself George Lopez as Himself Zac Efron as Himself Shia LaBeouf as Himself Paula Abdul as Herself Ryan Seacrest as Himself Nelly as Himself Ryan Sheckler as Himself Will Ferrell as Himself Hayden Panettiere as Herself Kenan Thompson as Himself Jamie Lynn Spears as Herself Tyler James Williams as Himself Hilary Duff as Herself Orlando Bloom as Himself Jack Black as Himself Jackie Chan as Himself Ben Stiller as Himself Nat Wolff as Himself Jon Heder as Himself Chris Brown as Himself Randy Jackson as Himself Dakota Fanning as Herself Nicole Kidman as Herself Vince Vaughn as Himself Bindi Irwin as Herself Masi Oka as Himself Tobey Maguire as Himself Gwen Stefani as Herself (Performer) Ciara as Herself Mandy Moore as Herself Ice Cube as Himself Chris Tucker as Himself Maroon 5 as Themselves (Performer) Ty Pennington as Himself Alex Wolff as Himself Akon as Himself (Performer) Taboo as Himself apl.de.ap as Himself Ron Jones as Himself