Guest Stars Miranda Cosgrove as Herself Adam Sandler as Himself Heidi Klum as Herself Nathan Kress as Himself Selena Gomez as Herself Robert Downey Jr. as Himself (Robert Downey, Jr.) Keke Palmer as Herself Victoria Justice as Herself Jennette McCurdy as Herself Jaden Smith as Himself Ariana Grande as Herself Chris Rock as Himself Noah Munck as Himself Kendall Schmidt as Himself Leon Thomas as Himself James Maslow as Himself Carlos PenaVega as Himself Avan Jogia as Himself Sarah Hyland as Herself Zac Efron as Himself Taylor Lautner as Himself Daniella Monet as Herself Matt Bennett as Himself Logan Henderson as Himself Paul Wight as Himself Ariel Winter as Herself Nolan Gould as Himself Emma Stone as Herself Elizabeth Gillies as Herself Josh Hutcherson as Himself Kristen Stewart as Herself Ludacris as Himself Michelle Obama as Herself Willow Smith as Herself Michael Mizanin as Himself Lucas Cruikshank as Himself Cody Simpson as Himself Halston Sage as Herself Ryan Potter as Himself Taylor Swift as Herself Ciara Bravo as Herself Andrew Garfield as Himself Justin Bieber as Himself Chris Colfer as Himself Halle Berry as Herself Jada Pinkett Smith as Herself Gracie Dzienny as Herself Katy Perry as Herself (Performer) Challen Cates as Herself Nicki Minaj as Herself Lulu Antariksa as Herself Rachel Crow as Herself Samantha Boscarino as Herself MAX as Himself One Direction as Themselves (Performer) Carlos Knight as Himself Jeff Sutphen as Himself Cee Lo Green as Himself Cee Lo Green voices Creepy Voice Tanya Chisholm as Herself Noah Crawford as Himself Stephen Kramer Glickman as Himself Chris O'Neal as Himself Anthony Carelli as Himself