Well I guess that would take us into the "rock/rap" thing ala Limp Bizkit and ... errrrrr, other stuff that I can't really think of right now. I remember the Faith No More track "We Care A Lot", though musically I would'nt call any of that stuff Hip-Hop but that's just me.
I do remember buying the soundtrack to the movie Judgement Night. It was pretty cool actually. Rappers doing tracks with rock groups - Ice-T & Slayer, Cypress Hill & Pearl Jam, Boo-Yaa Tribe & Faith No More, De La Soul & Sonic Youth, House Of Pain & Helmet and Sir Mix-a-lot & Mudhoney! The movie sucked though.
I was always suspicious of that rock/rap stuff. You can just imagine all the studio exec's saying, "Well gee, our artists are middleclass white boys... but they are STREET!!! If we get 'em to curse and wear LA Raiders gear we could still tap into the rap world." Rubbing their grubby, corporate little hands together... KER-CHING!!!