System of a Down, also known by the acronym SOAD and often shortened to System, is an Armenian American rock band from Southern California, formed in 1994. It currently consists of Daron Malakian (guitar, backing vocals), Serj Tankian (lead vocals, occasional keyboards and rhythm guitar), Shavo Odadjian (bass, background vocals) and John Dolmayan (drums).
The band achieved commercial success with the release of five studio albums, of which three debuted at number one on theBillboard 200. System of a Down has been nominated for four Grammy Awards, and their song "B.Y.O.B." was the Best Hard Rock Performance of 2006. The group went on hiatus in August 2006 and reunited in November 2010, embarking on a tour for the following three years
