John Dolmayan is an ArmenianAmerican musician songwriter and drummer He is best known as the drummer of System of a Down Dolmayan is also the drummer for the band Indicator and former drummer for Scars on Broadway Dolmayan ranked number 33 on Loudwire list of Top 66 Hard Rock Metal Drummers of All Time Description above from the Wikipedia article John Dolmayan licensed under CCBYSA full list of contributors on Wikipedia