Bobby McFerrin
From Muppet Wiki
Bobby McFerrin (b. 1950) is a jazz musician best known for the song "Don't Worry, Be Happy." He employs a unique musical style, in which he performs all the vocal and instrumental parts on his recordings with his own voice.
McFerrin guest starred on The Jim Henson Hour episode "The Ratings Game and The Ghost of Faffner Hall premiere episode "Your Body is an Instrument."
He also performed "Tweet in the Mornin'" on Sesame Street in Episode 2874.
