Believe it or not, but it’s been twenty years since Soundgarden released their seminal album Superunknown. To commemorate the event, the band have announced plans to release a 20th anniversary edition of the album. There will be three different versions available — a vinyl release, and two deluxe packages, all to be released on June 3. All the packages will contain demos and rehearsal recordings.

The two-CD Deluxe Edition will contain a remastered version of Superunknown as well as a CD with demos, rehearsals and B-sides, ten of which have never been released before. The Super Deluxe Edition has no less than five discs, and aside from even more demos and rarities it contains a 5.1 Surround Sound mix of Superunknown on Blu-ray.

Check out this awesome rehearsal of “The Day I Tried To Live,” a little taste of what’s to come: