System of a Down (commonly referred to as System or abbreviated as SOAD) is an American rock band, formed in 1994 in Glendale, California. Consisting of Serj Tankian (lead vocals), Daron Malakian (vocals and guitar), Shavo Odadjian (bass), and John Dolmayan (drums), the band has released five albums since 1998. A staple on mainstream rock radio, their works have earned them four Grammy Award nominations, of which they won one.
System of a Down are noted for the left-wing political views expressed in their songs, tackling several subjects including the Armenian Genocide, War on Drugs, religion, and censorship. The band is a part of the Axis of Justice, a non-profit organization co-founded by Tankian and fellow musician Tom Morello, dedicated to bringing together musicians, music fans, and grassroots political organizations to fight for social justice.