E.B. and Alvin's Vacation

E.B. and Alvin's Vacation is a American animated short film. This short film is the crossover was Alvin and the Chipmunks, Hop and Yin Yang Yo!.

Plot
The Chipmunks, the Easter Bunny, Yin and Yang are headed to the jungle for their vacation.

Cast

 * Russell Brand as E.B.
 * Justin Long as Alvin Seville
 * Stephanie Morgenstern as Yin
 * Christina Applegate as Brittany
 * Matthew Gray Gubler as Simon Seville
 * Jesse McCartney as Theodore Seville
 * Anna Faris as Jeanette
 * Amy Poehler as Eleanor

Cameos

 * Scott McCord as Yang
 * Novie Edwards as Lina