This time Brittany (voice of Christina Applegate), Eleanor (voice of Amy Poehler), and Jeanette (voice of Anna Faris), join Alvin (voice Justin Long), Theodore (voice of Jesse McCartney), and Simon (voice of Matthew Gray Gubler), in a battle of The Chipmunks vs. The Chipettes. There's a cash prize up for grabs for the school as well as bragging rights on who's the better performers. Dave's (Jason Lee), in the hospital so this time the Chipmunks will stay with Toby (Zachary Levi).
Fox 2000, Regency Enterprises, 20th Century Fox Distribution
Director: Betty Thomas
Writers: Glenn Berger, Jonathan Aibel, Jon Vitti
Producers: Janice Karman, Ross Bagdasarian, Jr.