Kerplunk! is the second full-length album by Green Day. It was released on January 17, 1992 on Lookout! Records. Kerplunk! was their last release on an independent label and was also the first album to feature their current band lineup with Tré Cool on drums. 

The album went on to become one of the highest-selling indie albums ever. Major labels took notice of Kerplunk!’s phenomenal popularity and many approached the band. Green Day realized that they had outgrown their record distribution capacity with Lookout! and eventually signed with Reprise Records. With Reprise, Green Day would record and released their third album Dookie (1994), which would become a landmark album of the 1990s with over 7 million units sold in the U.S. alone.

The album officially includes only 12 tracks, but the versions released on CD and cassette also include the 4 tracks from the Sweet Children EP. One of those 4 tracks is a cover of The Who’s “My Generation”. Another notable track on the album is “Welcome to Paradise”, which the band would re-record for their next album Dookie.

Source: Wikipedia