Kool Keith is hip-hop's most legendary weirdo. He stole the show as part of the golden era group the Ultramagnetic MC's, before breaking out and casting himself as an extraterrestrial rapping gynecologist for 1996's Dr. Octagon. After that, the Bronx-born rapper has continued to embrace a kooky series of aliases—including Black Elvis, Big Willie Smith, and Robbie Analog—while dropping a prolific series of entertainingly unhinged albums. Consider this your introduction to a hip-hop twilight zone.