Formed by Dave Hill and Mal Spooner in 1979, Demon have released several charting records, and released hit songs still played around the world to this day, including 'Night of the demon', 'Don't break the circle', and 'The unexpected guest'. They have toured the world many times, and varied their sound over the years, not just sticking to the traditional NWOBHM sound, but expanding into AOR and progressive music throughout their discography.