Name	Green Day
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In 1987, childhood friends Billie Joe Armstrong and Mike Dirnt (both 14 years old) formed a two person band called Sweet Children. The first Sweet Children show took place on October 17, 1987, at Rod's Hickory Pit in Vallejo, California where Armstrong's mother was working.[7] In late 1989, Armstrong, Dirnt and John Kiffmeyer (aka Al Sobrante) formed Green Day, allegedly choosing the name for their fondness of marijuana.[8] Green Day performed its first show in the courtyard of Contra Costa College, a junior college in San Pablo, California that Sobrante attended.[9]

Shortly thereafter, Larry Livermore, owner of independent label Lookout! Records, went to one of the bands shows. The band, he said, played the show like "The Beatles at Shea Stadium".[10][11] Livermore signed the band to Lookout!, and In late 1989 they released their first EP, 1,000 Hours, and quickly followed it up with their first LP, 39/Smooth in early 1990.