John Dolmayan is a Lebanese-born Armenian-American songwriter and drummer. He is best known as the drummer of System Of a Down. Dolmayan is also the drummer of the band Indicator and former drummer of Scars On Broadway.
Dolmayan joined System of a Down in 1997 after their original drummer, Ontronik "Andy" Khachaturian, left the band because of a hand injury. Dolmayan recorded five albums with System of a Down: System of a Down, Toxicity, Steal This Album!, Mezmerize and Hypnotize. Dolmayan won DRUM! Magazine's 2006 Drummer of the year award and was the feature story in their September edition.
After System Of a Down went on hiatus in 2006, Dolmayan teamed up with Daron Malakian (System of a Down's guitarist/vocalist) to form a new band called Scars on Broadway.