What other choruses has Sly Pyper done?

I know Sly Pyper has done the chorus for Kush (Dr. Dre)  Fastlane
(Bad Meets Evil), but there is another song I am thinking of that he
is done because his voice is very familiar.

I was thinking he did a chorus for Eminem, Obie Trice, or someone
along those lines.

Please list some songs that might fit this match if you can think of
any.

Thanks a lot!