The Ultramagnetic MCs is an American hip hop group based in The Bronx, New York City, NY, United States. Founded by Kool Keith, the group also includes Ced Gee, TR Love, and Moe Love. Tim Dog became an unofficial member in 1989. In 1990, DJ Jaycee was added as a road manager and backup DJ. Big.D was put down with the crew by Kool Keith in 1989. A former member, Rooney Roon, was fired following an assault arrest. Beat-boxer Rahzel was also involved with the group early in its career. The group's work was associated with unorthodox sampling, polysyllabic rhymes, and bizarre lyrical imagery.