System of a Down

System of a Down is an Armenian-American heavy metal band formed in Glendale, California, in 1994. Since 1997, the band has consisted of founding members Serj Tankian (lead vocals, keyboards), Daron Malakian (guitar, vocals), and Shavo Odadjian (bass); along with John Dolmayan (drums), who replaced original drummer Andy Khachaturian.