Bad Boy Bill (born William Renkosik) is a disc jockey (DJ) from Chicago, Illinois, U.S. who plays an assortment of house music. While only in his teens, Bad Boy Bill began his DJ career in 1985 during the Chicago house music movement of the mid to late 1980s. As a remixer, he landed his first Top Five Billboard Dance Chart hit at the age of 19 – Dada Nada's "Deep Love" which also featured remixes by House music legends Frankie Knuckles & David Morales, Robert Ozn and Steve Wight. Bad Boy Bill also made an uncredited appearance as the club DJ in the opening scene of the 1998 film Blade.