Clark Terry, famed jazz trumpeter, died last Saturday at the age of 94. From a piece on NPR:
Clark Terry broke through a color line in the music business in the early 1960s. When the National Urban League lobbied the NBC network to hire black musicians for its orchestra, the white players in the Tonight Show band recommended Clark Terry.
His occasional spotlight in front of a nationwide audience included his character Mumbles, a recording studio gag that was his sendup of some of the blues vocalists he played with back in St. Louis.