Vic Mercer, better known by his stage name Celph Titled, is an American hip-hop solo artist and record producer and a member of the hip-hop supergroup Army of the Pharaohs, as well as the Demigodz along with Connecticut rapper Apathy, Ryu from Get Busy Committee, and rapper Blacastan and Esoteric.

Mercer moved to New York City and began working as an in-house producer and A&R. The now-defunct BUDS International and Bronx Science Records released all of his early records on vinyl, including those of his original group, Equilibrium, and singles from his longstanding partner, Apathy. Grammy Award-winner Mike Shinoda, of Linkin Park, invited Mercer to join his Los Angeles cohorts, Styles of Beyond, as an official part of Fort Minor's album The Rising Tied (2005).