1,039/Smoothed Out Slappy Hours Trivias

All songs by Billie Joe Armstrong (lyrics) and Green Day (music), except where noted.

Note 1: The single bears a copyright notice dated 1990, which has led some sources to cite this as the release year.

Although the credits say "Knowledge" was written by Armstrong, the song was written by Tim Armstrong of Rancid/Operation Ivy and not Billie Joe.

1,039/Smoothed Out Slappy Hours saw regional success in California, and paved the way for the band's sophomore effort, Kerplunk, which sold well nationally for an independent record and in turn laid the groundwork for 1994's major label smash hit Dookie.