The Demon Boyz were an English hip hop group formed in London by Demon D, Mike J and DJ Devastate. They began rapping whilst in their early teens, performing at the Rebel MC’s Beat Freak gigs. Their big break came when they won a competition on Dave Pearce’s rap show, their prize being to perform live on stage with Derek B, Faze One and T La Rock at a gig at Camden Palace. Derek B – aka Derek Boland, quasi-A&R man for Music of Life records – was so impressed with the group that he put them in touch with the company’s founder, Simon Harris.

The group recorded the song "This is a Jam" for the inaugural release from the label’s classic Hard as Hell series, Hard as Hell (Music of Life, 1987), and the group were quickly signed up on the back of this song’s reception. As one of the first groups to rap in their natural accents – in an era when most British rappers were adopting fake American accents to emulate the hip hop music they were listening to – the Demon Boyz created a stir, and laid the foundations for the creation of a truly original UK scene.