Lunatic Calm were a UK-based electronic music group, specializing in big-beat hardcore and down-tempo trip-hop. Formed in 1996, they comprised of Simon 'sHack' Shackleton and Howard 'Howie' Saunders. They composed and produced several high-energy tracks and two albums. The group are most famous for their track Leave You Far Behind, which has appeared on numerous movie soundtracks including The Matrix, Charlie's Angels, and Mortal Kombat: Annihilation. Together, they have also done numerous remixes for artists such as Bush, DJ Scissorkicks, and Curve.