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?