The DOC feat Mc Ren, Ice Cube, Snoop Dogg & 6-Two - The Shit
This song is from Doc's third album Deuce (Silverback Records), released in 2003. It was more of a compilation album than a solo album, as his protege Six-Two has more vocals on it than the Doc himself. This track is the only one where he raps.
Jazze Pha is the producer.
The song doesn't contain any direct samples but it does borrow some lines from earlier tracks such as "P Funk (Wants to get funked up)" (1975) by Parliament and "Still Talkin'" (1988) by Eazy-E.
Enjoy!