Chaos UK are an English hardcore punk band formed in 1979 in Portishead, near Bristol. They played fast aggressive hardcore punk rock initially. The original line up of Simon on vocals, Andy on guitar, Chaos (aka "Lice") on bass and Potts on drums recorded two EP's and a full LP for Riot City Record. In the process they along with fellow Bristolians Disorder and Stoke's Discharge revolutionised the HC punk scene. In particular the Japanese 80's HC punk bands were heaviy influenced by Chaos UK and Disorder's brutal take on punk. Chaos UK's debut LP was notable in the fact that the band's label claimed it was the "fastest, noisiest LP in the cosmos" in the short lived "Punk Lives" magazine; vocal duties on this recording were also handled by bassist Chaos.
The mid 80's saw an almost new line up with Chaos remaining the only original member. He was joined by Mower on vocals, Gabba on guitar (previously with Nottingham's The Seats Of Piss) and Chuck on drums. Over the rest of the 80's Chaos UK were the mainstay and lynchpin of the UK hardcore punk scene playing many hundreds of shows around the world including Japan (the first English punk band to do so, but with a standin drummer, Blackmore of Bristol punk band Lunatic Fringe), the USA, Mexico and all over Europe.