Alvin, the leader; Simon, the smart one ... This female version of the Chipmunks included Brittany, Jeanette, and Eleanor, who sing in a slightly different but still high-pitched register.

After a concert mishap lands Dave in the hospital, Alvin, Simon, and Theodore end ... but they meet their match with the Chipettes: Brittany, Jeanette, and Eleanor, who work for their ex-manager ...