The UMC's are an American hip-hop duo from the borough of Staten Island in New York City. The group was composed of Haas G and Kool Kim, who released the critically acclaimed, full-length album Fruits of Nature in 1991, which garnered chart success with the duo's #1 Billboard Hot Rap Single "Blue Cheese" and #2 Hot Rap Single "One To Grow On." In 1994, the duo released its sophomore album, Unleashed but split up soon after.

Since the group's break-up, Haas G has focused on producing music, most notably garnering a #1 hit for Lil Kim featuring 50 Cent, with "The Magic Stick." Kool Kim reinvented himself as the controversial underground emcee NYOIL. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.