That year, Sparks began hosting a show on Eminem's Sirius satellite radio channel, Shade 45, and added another weekly show in North Carolina. He also produced The Notorious B.I.G.'s song "Hold Ya Head" featuring Bob Marley off Biggie's posthumous final studio album, "". In April 2005, Sparks released his own studio album, "Maybe You Been Brainwashed", on Koch Records. The lead single, "Run This City," featured P. Diddy and Miri Ben-Ari. Other featured acts on the album included Busta Rhymes, Kardinal Offishall, Jadakiss, Mobb Deep, the Clipse, and others.