The Clash return to record stores in a big way this September, with the release of a 12-disc box set called Sound System — featuring five of the band’s six albums, a DVD with unseen footage and three discs’ worth of demos, non-album singles, rarities and B-sides — as well as a new double-disc best-of set.

New Order will mark its highly successful reunion with the release this summer of a new 13-track live album recorded at the U.K.’s Bestival last September, according to the NME. Live at Bestival 2012 will be released July 8 in the U.K. via CD and download, with all profits going to the Isle of Wight Youth Trust.

EMI Music will reissue The Stranglers’ 1992 box set The Old Testament: The U.A. Studio Recordings (1977-1982), which collects the punk legends’ first six albums plus bonus singles and B-sides on four CDs, and now includes a brand-new fifth disc of rarities including live tracks, radio edits and remixes.

Fire Records today announced plans to reissue the full catalog of mind-bending ’80s psych-rockers Spacemen 3 — featuring Peter “Sonic Boom” Kember and a pre-Spiritualized Jason “J. Spaceman” Pierce — on 180-gram colored vinyl, beginning next week with the band’s first two studio LPs and a follow-up live set.

Big Country this summer will release a four-disc box set that compiles the Scottish rockers’ BBC studio sessions, live concert appearances and performances on TV shows such as “Top of the Pops,” a collection Universal Music says “charts the spectacular rise” of the band through the ’80s.

Pet Shop Boys today announced full details of their forthcoming album Electric — the second release from Chris Lowe and Neil Tennant in less than a year — and revealed the itinerary for a month-long, 19-date tour that will bring the duo back to North America for the first time in four years this September and October.