If you were around in 1994 or have listened to a rock or alternative radio station anytime since then, you’re undoubtedly familiar with Soundgarden’s “Black Hole Sun.” The psychedelic ballad (which was accompanied by a surreal video), was the breakout hit on the band’s fourth album, Superunkown. With the mammoth five-disc 20th anniversary reissue of the album coming out in June, and the  band on tour with Nine Inch Nails later this year, the band have released a demo version of the song.

Those looking for big differences between the demo and the finished version won’t find many. The guitar intro is a bit different, and the song doesn’t sound as full, for obvious reasons, but it’s interesting to hear just how fully-formed the song was before it made the cut on the album. You’ll also be able to pick up a 22-track vinyl album, Superunknown: The Singles, this Saturday at Record Store Day if you’re a true fan.