Robert "Bobby" Diggs, better known by his stage name RZA or the RZA, is an iconic American rapper, record producer, composer, actor, and filmmaker. He is the de facto leader of the world famous hip-hop group Wu-Tang Clan. The Source and Vibe both ranked him among the greatest hip-hop producers of all time, while NME included him on its list of the 50 Greatest Producers Ever, spanning all genres.