Renaissance man... good term for the rapper known as Mos Def. He plays bass, drums, the vibraphones, and he sings quite well. His album, Black On Both Sides, is one of the best I've ever heard. It demonstrates his versatility, as he plays quite a few instruments on the album. He has influences from jazz, rock, and R&B.
You can find him on both volumes of Soundbombing from Rawkus Records.