I was thinking that it might be his Forgot About Dre verse, just because of the popularity of The Chronic and how it really broadened Em's audience. Before his classic appearances on The Chronic, I think basically all of Em's fans were white (still mostly) but once Dre fans (yes I'm presuming a lot black) heard Em, some of them jumped on the Shady bandwagon and catapulted Em into his prime.
Thoughts?