Sound Sultan born Olanrewaju Fasasi on November 27, 1976 is a Nigerian rapper, singer-songwriter, actor, comedian and recording artist. He is regarded as one of the pacesetters of modern hip hop music in Nigeria.

Sound Sultan is the fourth child amongst six children to Fasasi Liadi Alarape (Father) and Fasasi Adeyinka Ajarat (Mother). He attended Stepping Stone Nursery and Primary (1981–1987) school before moving to Federal Government College Ogbomosho (1988–1993) to attain his secondary school education before acquiring a degree in Geography and Regional Planning from Lagos State University in 1999.