Bobby McFerrin In 1986, McFerrin was the voice of Santa Bear in "Santa Bear's First Christmas", and in 1987 he was the voice of Santa Bear/Bully Bear in the sequel "Santa Bear's High Flying Adventure". That same year, he performed the theme song for the opening credits of Season 4 of "The Cosby Show". In 1988, McFerrin recorded the song "Don't Worry, Be Happy", which became a hit and brought him widespread recognition across the world. The song's success "ended McFerrin's musical life as he had known it," and he began to pursue other musical possibilities on stage and in recording studios.
Bobby McFerrin the Pixar short film "Knick Knack". The rough cut to which McFerrin recorded his vocals had the words "blah blah blah" in place of the end credits (meant to indicate that he should improvise). McFerrin spontaneously decided to sing "blah blah blah" as lyrics, and the final version of the short film includes these lyrics during the end credits. Also in 1989, he formed a ten-person "Voicestra" which he featured on both his 1990 album "Medicine Music" and in the score to the 1989 Oscar-winning documentary "". The song "Common Threads" has frequently reappeared in some public service advertisements about