Simpson & Bumps "Drums" (MP3)
Bumps, the self-titled beat album was released on Stones Throw a couple years back. John McEntire, John Herndon, and Dan Bitney of Bumps had Guilty Simpson over this track for a potential single.
Also See: Bumps by Bumps, on Stones Throw
Bonus: Guilty Simpson & Bumps "Drums (Gymbag Remix by Koushik)" (MP3)
Guilty Simpson & Madlib's project OJ Simpson is released May 18th on Stones Throw