Mike Dirnt, American bass player and songwriter
Michael Ryan Pritchard (born May 4, 1972), better known by his stage name Mike Dirnt, is an American rock musician who is the co-founder, bassist, backing and occasional lead vocalist, and former guitarist of Green Day. He has also played in several other bands, including the Frustrators. His stage name was originally a nickname that his friends from grade school gave him, as he constantly played "air bass/guitar" and made a "dirnt, dirnt, dirnt" noise while pretending to pluck the strings.