Kerplunk was Green Day's first of many albums on the Lookout Records label.
Following the departure of co-founder Larry Livermore in 1997, the label departed from its "East Bay sound" and proved unable to match early success
In an effort to make a splash, four 7-inch vinyl records were released simultaneously, including also releases by popular 924 Gilman bands Crimpshrine (LK-04) and Isocracy (LK-05)

