"Three Whipped Cream Pies on the Wall" is a song sung by Maria (with Bob on piano, Luis on violin, and David on cello). The song teaches about subtraction, as Maria throws the pies at her accompanists. By the end of the song, Maria is pelted with pies herself. The song is a slowed-down spoof of "One Hundred Bottles of Beer on the Wall". File:Sesame Street Whipped Cream Pies