System of a Down

System of a Down (also known as SoaD or simply System) is an Armenian American heavy metal band formed in Glendale, California, in 1994. Since 1997, the band has consisted of Serj Tankian (lead vocals, keyboards); Daron Malakian (guitar, vocals); Shavo Odadjian (bass, backing vocals); and John Dolmayan (drums), who replaced original drummer Andy Khachaturian.[1] -Wikipedia