On March 8, 1994, Seattle rock band Soundgarden released their critically acclaimed fourth full length album, 'Superunknown', on A&M Records. An immediate Number One n the U.S., it earned the band two Grammy Awards, and sold millions of records worldwide. The record yielded such iconic tracks as 'Black Hole Sun,' 'Spoonman,' and 'Fell on Black Days.' The LP that was often considered Soundgarden's masterpiece helped redefine alternative rock and influenced the course of music history. This year, the band celebrates the 20th anniversary of this groundbreaking album with a special reissue The Super Deluxe Edition is a 5-CD package featuring the remastered album, additional demos, rehearsals and B-sides and the fifth disc is the album mixed in Blu-ray Audio 5.1 Surround Sound. The Super Deluxe Edition is incredibly packaged in a hardbound book with a lenticular cover, liner notes by David Fricke and newly reimagined album artwork designed by Josh Graham. It also features never before seen band photography by Kevin Westerberg. The Deluxe Edition is a 2-CD package featuring the remastered album along with disc two consisting of demos, rehearsals, B-sides and more. A 2-LP gatefold of the original 16 vinyl tracks remastered on 180-gram vinyl in a gatefold jacket with 12 page book with new photos and art plus Download.CD original 15 track remastered album version, available in a standard jewel case.