John Kiffmeyer was once in a punk rock musical band.
John Kiffmeyer -LRB- born July 11 , 1969 -RRB- , known professionally in music as Al Sobrante , is an American musician , best known as the former drummer for the punk rock band Green Day .	Green Day	Green Day	punk rock	punk rock
Green Day is an American punk rock band formed in 1986 by lead vocalist and guitarist Billie Joe Armstrong and bassist Mike Dirnt .	Billie Joe Armstrong	Billie Joe Armstrong	Mike Dirnt	Mike Dirnt	punk rock	punk rock
