If his statements didn't show how ignorant he is about copyright (and how much of a descipable dumbshit he is), I'd have bet his using uncleared stuff is just baiting for some good old-fashioned hip-hop lawsuit, just to get more publicity.
The original song is awesome, it's VIP QUALITY.
http://www.fairlight.fi/tempest/microgrooves/
All of his songs are pretty VIP QUALITY, really.