Selena Gomez previously appeared in the Sonny with a Chance episode "Battle of the Networks' Stars".
Schooled by Grammar, Teen Rage, Lil' Texters, Olaf Glutella: Fake Foreign Exchange Student, Garlic Garden, Sag Down Smackdown.
Selena Gomez was best friends with Demi Lovato, the main character of Sonny With A Chance (2008)