System of a Down
From Wikipedia
System of a Down (sometimes referred to as S.O.A.D. or System) is a band from Los Angeles, California that formed in 1995. The band consists of Serj Tankian (vocals, keyboards), John Dolmayan (drums), Daron Malakian (guitar, vocals) and Shavo Odadjian (bass), who are known more for the outspoken social and political views found in their songs than for their distinctive dress styles and goatees. All four members are of Armenian ancestry.