And you guys are supposed to be master thinkers (as being part of an mc)

Think why he did that racist song?

He done it, because if he expressed himself being racist, people will see how disgusting it is, in the same way tupac pretended to be a gangsta to show the guvners how disgusting being a gangster is.

Or it could be sound technology, so its just aload of engineers making a tune outta samples of his voice and re-arranging them.