S.O.B. (abbreviated from Sabotage Organized Barbarian) is a Japanese punk rock band formed in Osaka in 1983.[1] Their original vocalist Yoshitomo "Tottsuan" Suzuki committed suicide in 1995. They are also considered hugely influential on grindcore bands such as Napalm Death[4][5][6] and the genre of death metal[7] as well as one of the mainstays of the thrashcore genre.[8][1][9][10] The band have sometimes been described as grindcore, themselves.[11][12]