Infamous Mobb, also known as IM3, is a hip hop group from Queensbridge in Queens, New York, composed of members Ty Nitty, Twin Gambino and Godfather Pt.III. They are an integral part of the Queensbridge hip hop scene, which includes rappers like Nas, Cormega and Mobb Deep, and began with the Juice Crew. Friends since childhood, the Infamous Mobb members all grew up on Queensbridge's 41st side 12th Street. Gambino and Scarface were twin brothers; Twin Scarface died in a car crash in late 1996. The only known track released that Scarface appeared on is "All Pro" on Big Noyd's debut album Episodes of a Hustla. Gotti briefly rapped with them but decided to become a Producer and Manager for the group.

Infamous Mobb first appeared in 1994 on Mobb Deep's Demo Cuts mixtape for their 1995 album, The Infamous. On the final Album Ty Nitty appeared on "Party's Over", in the third verse along with Big Noyd although the other members were only included in the prelude skits.