The Chipmunks, also known as Alvin and the Chipmunks, is a musical group which consists of Alvin, Simon, and Theodore. The Chipmunks have been known for taking songs in style and munking them. The Chipettes, also known as Brittany and the Chipettes, is a fictional group of female singing chipmunks (Brittany, Jeanette, and Eleanor) first appearing on the show Alvin and the Chipmunks in 1983.