Don't Worry, Be Happy Don't Worry, Be Happy "Don't Worry, Be Happy" is a popular worldwide hit song by musician Bobby McFerrin. Released in September 1988, it became the first "a cappella" song to reach number one on the "Billboard" Hot 100 chart, a position it held for two weeks. The Indian mystic and sage Meher Baba (1894–1969) often used the expression "Don't worry, be happy" when cabling his followers in the West. In the 1960s, the expression was printed up on inspirational cards and posters of the era. In 1988, McFerrin noticed a similar poster in the apartment of the jazz duo Tuck
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