Lenny Bruce's  "Father Flotsky's Triumph", a parody of prison movies of the '50's, featured this impression by Bruce of a black as portrayed by Hollywood (being typed from memory, so no guarantee of total accuracy):

(LB in stereotype black voice, prisoner on death row)

Tomorrow mornin', Ize be gwine up to Hebbin, in da big ribbaboat. An' when I gets up dere, I's gonna gets me lots a' fried chikin an' waw-de-melon.  (singing) Fried chikin an' waw-de-melon!  Fried chikin an' waw-de-melon! (speaking) Dat's what Ize gonna get when I gets up to Hebbin in da big ribbaboat in da sky, God damn!