After an early report from TMZ, sources inside the rapper's label have confirmed that UGK's Pimp C has passed away. TMZ reported that Pimp, real name Chad Butler, was found dead this morning in his room at Hollywood's Mondrian Hotel. After responding to a 911 call, L.A. County Fire found him in his bed. The cause of death is unknown at this point. He was 33 years old.

Pimp C was one of the most influential rappers and producers in hip-hop's history. His work with his partner Bun B in UGK over the last 15 years helped lay the foundations of Southern rap.