Detestation is the debut LP by Japanese hardcore punk band G.I.S.M. Released on Dogma Records in 1984, the record displays a unique blend of musical influences that the band would become notable for, ranging from industrial to glam metal guitar work. The album has had a very large impact across numerous musical scenes, and its songs have been covered by many notable hardcore punk and extreme metal bands, including Poison Idea, Integrity, and Extreme Noise Terror. Due to the cult status and the scarcity of the original record, it was up until 2020 one of the most bootlegged records of all time, and had only seen one official reissue in 1992 on Compact Disc on Sakevi Yokoyama's label Beast Arts. It was also released as an extended compilation in 2015 by Beast Arts on Compact Disc.