the Krown Rulers were an American hip hop group hailing from Camden, NJ and consist of DJ Royal Rocker and MC Grand Poobah (not to be confused with Brand Nubian's Grand Puba). They released their debut album Krown Rulers on Warlock Records in 1988. Many hip hop fans consider Krown Rulers one of the best rap albums from the late 80's era. Read more on Last.fm