Herbie Hancock performs “Watermelon Man”, first as originally written in 1962, then in the jazz fusion style he embraced with both hands eleven years later.  Hancock’s first version was released as a grooving hard bop record, and featured improvisations by Freddie Hubbard and Dexter Gordon.  He radically re-worked the tune, combining elements of funk, for his album Head Hunters in 1973.