SLIPKNOT has announced the next phase of its uncompromising history — the release of ".5: The Gray Chapter", the fifth studio album from the Grammy Award-winning group, which arrives on October 21. The band's North American "Prepare For Hell" tour, promoted exclusively by Live Nation, is set to kick off immediately following the band's previously announced Knotfest (October 24-26).

".5: The Gray Chapter" is available now for pre-order on the iTunes Store, with all pre-orders receiving instant downloads of the album’s powerful new song "The Devil In I" as well as "The Negative One". ".5: The Gray Chapter" is also available in a wide range of distinctive versions, including standard and special edition CDs (two bonus tracks and expanded packaging) as well as limited edition, colored vinyl double LP set.

SLIPKNOT's "Prepare For Hell Tour" will feature very special guests KORN and openers KING 810 and will kick off October 29 in El Paso, Texas and traversing North America through December 7.