Biography: Horst Christian Simco (born January 29, 1982), known professionally as Riff Raff (often stylized as RiFF RAFF), is an American rapper from Houston, Texas. He was originally managed by Swishahouse co-founder OG Ron C. After being associated with rapper and producer Soulja Boy's imprint S.O.D. Money Gang Inc., Riff Raff was signed to DJ and producer Diplo's record label, Mad Decent, from 2013 through 2015.