When my daughter was young and watched Sesame Street, I always ran to the TV when they aired the song "The Butterfly Ball".
Later I learned that "The Butterfly Ball and the Grasshopper's Feast" is a concept album by Roger Glover and subsequent live rock opera appearing in 1974 and 1975 respectively, based on the children's book of the same title.
If you want to hear this marvelous song go to : http://www.youtube.com/watch?v=6sn1UqbbbqQ