A previously-unheard Green Day demo tape has surfaced, which dates back to the sessions that took place before the recording of their 1994 album “Dookie.” Listen to the tracks below.

Prior to the release of their breakthrough third album in 1994, the band released “Kerplunk” in 1992 through Lookout Records. The found demo features three previously-unheard versions of Green Day’s songs, reportedly took place during recording sessions between 1992-93.

The fan site Green Day Authroity have reported the discovery of the demo tape, which contains early versions of “J.A.R.” (which was released on the soundtrack for the 1995 movie Angus and later appearing on the 2001 compilation “International Superhits!”), “Having A Blast” (which was released on “Dookie.”) and “Don’t Wanna Fall In Love” (which appeared on the Green Day compilation album “Shenanigans” in 2002.

Here is the final version of Green Day’s “J.A.R.”

Here is the final version of Green Day’s “Having A Blast.”

Here is the final version of Green Day’s “Don’t Wanna Fall In Love.: