"Firm Biz" also features a chorus performed by former En Vogue singer Dawn Robinson, reworked from the "Square Biz" chorus.

The song did not reach any US chart positions, but was a UK top 20 hit in 1997.

A remix of the song was released, featuring a verse from Half-A-Mill and a chorus by Mary J. Blige, replacing Dawn Robinson.

In the beginning of the video, it shows a man trying to rob a bank.

While the man is riding on his car and trying to flee, Nas and AZ are planning to catch him.