Home People John Dolmayan John Dolmayan movies John Dolmayan movies John Dolmayan Movies (5) System of a Down - Rock in Rio (2015) As Drums. He was 42 years old System of a Down - Rock in Rio (2011) As Drums. He was 38 years old Screamers (2006) As Himself. He was 33 years old System of a Down: Live London Astoria (2005) As Himself. He was 31 years old System of a Down: Live Hurricane Festival (2005) As Himself. He was 31 years old