Bad Boy Bill (born William Renkosik) is a disc jockey (DJ) from Chicago, Illinois, United States who specializes in house music.
Bad Boy Bill began his DJ career in 1985, while still in his teens, amid the Chicago house music craze of the mid to late 1980s.
He collaborated alongside WBMX DJ mixing crew members Mike “Hitman” Wilson and Julian “Jumpin” Perez, known as the Hot Mix 5. Bill’s reputation increased as a result of his DJing at parties throughout the Chicago region and opening for the Hot Mix 5. Bad Boy Bill was a regular DJ on popular house mixes on Chicago’s WBMX 102.7 FM, WGCI 107.5 FM, and subsequently B96 96.3 FM, a top pop station.
He had his first Top Five Billboard Dance Chart hit as a remixer at the age of 19 with Dada Nada’s “Deep Love,” which also contained remixes by House music giants Frankie Knuckles & David Morales, Robert Ozn, and Steve Wight.
Bad Boy Bill currently plays music ranging from house to electro and is known for spinning six turntables at once. He finished in the top three at the Disco Mix Club championships in 1988 and 1989.
In the opening scene of the 1998 picture Blade, Bad Boy Bill appeared uncredited as a club DJ.
