Reef The Lost Cauze (born Sharif T. Lacey in 1981) is a prominent underground hip hop artist based in Philadelphia, Pennsylvania. Reef became well known on the underground circuit towards the late 1990s and more so in the early 2000s, making his mark by winning many battle competitions within New York and interstate and displaying rare skills of what many called true MCing. Reef is also part of hip hop underground groups; JuJu Mob & Army of the Pharaohs.