“Firm Biz” is the first single from supergroup The Firm (Nas, AZ, Nature & Foxy Brown) from their singular collaborative LP The Album.

The song was produced by L.E.S, who based the song’s track on a sample of Teena Marie’s 1981 hit “Square Biz”. “Firm Biz” also features a chorus performed by former En Vogue singer Dawn Robinson, reworked from the “Square Biz” chorus. AZ raps the first verse of the song, Nas the second, and Foxy Brown the third and final verse.