It's entirely standard for rap songs to use samples, but what about the other way around --rap music sampled for use in non-rap songs?  I can think of two examples:  Macy Gray's *Do Something* which samples OutKast's 1994 song *Git Up, Git Out*, and Mary J. Blige's *Reminisce* which sampled Pete Rock & C.L. Smooth's *They Reminisce Over You (T.R.O.Y.)*.  Are there other songs which have used this technique?