John O'Reilly began his career in the jazz genre, working as the drummer for Earth Fatha Jones. He also performed during the 1970s with JF Murphy and Soul Up. His next move was onto the band Whiplash, a rock group. He signed up as drummer for Rainbow in 1993, staying with that group until 1995 when he joined Blue Öyster Cult. He did not stay with that group for long, going back to Rainbow in 1996. He is the drummer for Westworld. He has also performed with Randy Coven and Brian Gottesman. ~ Gary Hill, Rovi