John Ro Myung (/ˈmaɪ.əŋ/; born January 24, 1967) is a Korean American bassist and a founding member of the progressive metal group Dream Theater.Born in Chicago to Korean parents, Myung grew up near John Petrucci on Long Island. After taking violin lessons from the age of five, he started playing bass guitar at fifteen. After graduating from high school, he and Petrucci enrolled at the Berklee College of Music, where they met Mike Portnoy. The trio became the nucleus of Dream Theater, which became Myung's primary professional focus.