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.
A cappella practice of scriptural cantillation. The use of musical instruments is traditionally forbidden on the Sabbath out of concern that players would be tempted to repair (or tune) their instruments, which is forbidden on those days. (This prohibition has been relaxed in many Reform and some Conservative congregations.) Similarly, when Jewish families and larger groups sing traditional Sabbath songs known as zemirot outside the context of formal religious services, they usually do so a cappella, and Bar and Bat Mitzvah celebrations on the Sabbath sometimes feature entertainment by a cappella ensembles. During the Three Weeks musical instruments are prohibited. Many Jews