Kool Keith is an American rapper and producer known for his unique style and abstract lyrics. He first gained fame in the late 1980s as a member of the hip-hop group Ultramagnetic MCs. His solo career began in the 1990s, and he has released numerous albums, showcasing his innovative approach to music. Kool Keith is recognized for his alter egos, such as Dr. Octagon, which highlight his creativity and versatility. His work often blends elements of hip-hop with experimental sounds, making him a significant figure in the underground rap scene.