Nirvana’s sophomore album and major label debut, “Nevermind,” celebrates its 20th anniversary next month, and Universal Music Enterprises is re-releasing versions of the album with deluxe editions, exclusive content and more on Sept. 27.Released in Sept. 1991, “Nevermind” has sold more than 30 million copies and spent 253 weeks on the Billboard 200 chart, peaking at No. 1. The re-release includes configurations ranging from a standard digital/CD remaster of the original album to a 4-CD/1-DVD Super Deluxe Edition, with unreleased recordings, obscure B-sides, alternate mixes, radio sessions, studio rarities, and live recordings. The limited numbered Super Deluxe also features the first full official release of the pre-“Nevermind” demos recorded at producer Butch Vig’s Smart Studios as well as boombox recordings of subsequent rehearsals and the “Devonshire Mixes”: the album as produced and mixed by Vig as opposed to the commercially released final version produced by Vig and mixed by Andy Wallace. The Super Deluxe also comes with a DVD, featuring all four music videos from “Nevermind,” a pair of previously unreleased BBC recordings and the Live Halloween 1991 concert at Seattle’s Paramount Theatre, as well as a stunning 90-page bound book full of rare photos, documents and more. The “Nevermind” reissue is also available as a 2-CD Deluxe Edition, a 4-LP 180-gram heavyweight vinyl edition, a remastered CD of the original album and digital versions of the standard, Deluxe, and Super Deluxe Editions. This article appears courtesy of Billboard.com