Hardest track I've heard in a while. (although i'm probably late on this)

[D-Rose]

Biggie - Running Your Mouth ft Fabolous, Nate Dogg, Busta Rhymes, Foxy Brown, Snoop Dogg.

I heard it on the radio. Is it a Rick Rubin track or what? Shit is dope.

http://www.youtube.com/watch?v=fvNBZsneCio