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. The band achieved commercial success with the release of five studio albums, three of which debuted at number one on the US Billboard 200. System of a Down has been nominated for four Grammy Awards, and their song "B.Y.O.B." won a Grammy Award for Best Hard Rock Performance in 2006.