"Alvin's Harmonica" is a song from the fictional musical group, Alvin and the Chipmunks, which also features additional vocals by Ross Bagdasarian, Sr. who plays David Seville in the song. The song was released as the second single from the group's debut album, Let's All Sing with the Chipmunks in 1958. Like "Witch Doctor" and "The Chipmunk Song", ...