John Kiffmeyer

John Kiffmeyer
Also known as	Al Sobrante
Born	(1969-07-11) July 11, 1969 El Sobrante, California, U.S.
Genres	Punk rock pop punk alternative rock
Occupation(s)	Musician producer songwriter
Instruments	Drums
Years active	1986–1995, 2015 (musician) 1995–present (producer)
Labels	Lookout!

John Kiffmeyer (born July 11, 1969) also known as Al Sobrante is an American drummer. He was the first drummer for the punk rock band Green Day. He drummed for the band's 1,000 hours EP and the band's Slappy EP. He has also been the drummer for Isocracy. He got his nickname from the fact he is from El Sobrante (California).