The Singing Dentists sing "Say Toothpaste, Somebody!" on Sesame Street.
The lead singer, performed by Kevin Clash, was made from a Green Anything Muppet, while his background singers (puppeteered by Jim Henson, Marty Robinson, David Rudman, and an unidentified performer[1]) were made from Purple, Lavender, Fat Blue, and Pumpkin Anything Muppets.