Slipknot released an album.
All Hope Is Gone is the fourth studio album by American metal band Slipknot . Iowa is the second studio album by the American heavy metal band Slipknot . Slipknot (band) . The band rapidly rose to success following the release of their eponymous debut album in 1999 . 3 : ( The Subliminal Verses ) , before going on another hiatus and returning in 2008 with its fourth album , All Hope Is Gone , which debuted at number one on the Billboard 200 chart . After another long hiatus , Slipknot released its fifth studio album , .5 : The Gray Chapter , in 2014 .