John Dolmayan (born July 15, 1973) 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 for the band Indicator and former drummer for Scars on Broadway. His energetic live performances with System Of A Down over the years, have garnered him critical acclaim. Loudwire listed him as one of the Top 50 Hard Rock + Metal Drummers Of All Time , with Dolmayan being ranked at #22.