"Chop Suey!" is a song by the American heavy metal band System of a Down. It was released on August 13, 2001, as the first single from their second album, Toxicity (2001). The single earned the band its first Grammy nomination in 2002 for Best Metal Performance. "Chop Suey!" is often considered the band's signature song, and has reached one billion views on YouTube.

System of a Down is an American heavy metal band formed in Glendale, California, in 1994. Since 1997, the band has consisted of founding members Serj Tankian ; Daron Malakian ; Shavo Odadjian ; along with John Dolmayan (drums), who replaced original drummer Andy Khachaturian in 1997.