Robert Fitzgerald Diggs (born July 5, 1969), better known by his stage name RZA ( ), is an American music producer, multi-instrumentalist, author, rapper, actor, composer, and filmmaker. A prominent figure in hip hop, RZA is the de facto leader of the Wu-Tang Clan. He has produced almost all of Wu-Tang Clan's albums as well as many Wu-Tang solo and affiliate projects. He is a cousin of the late group-mate, Ol' Dirty Bastard and GZA (who also formed the group with RZA). He has also released solo albums under the alter-ego Bobby Digital, along with executive producing credits for side projects.