Donaldson Toussaint L'Ouverture "Donald" Byrd II (December 9, 1932 – February 4, 2013) was an American jazz and rhythm & blues trumpeter. 　　A sideman for many other jazz musicians of his generation, Byrd was best known[by whom?] as one of the only bebop jazz musicians who successfully pioneered the funk and soul genres while simultaneously remaining a jazz artist. 　　As a bandleader, Byrd is also notable for his influential role in the early career of keyboard player and composer Herbie Hancock.