Michael Ryan Pritchard born May 4 1972 better known by his stage name Mike Dirnt is an American rock musician who is the cofounder 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 Dirnt was originally a nickname that his friends from grade school gave him as he constantly played air bassguitar and made a dirnt dirnt dirnt noise while pretending to pluck the strings
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