Iowa hard rock outfit, Stone Sour, are celebrating the release of Hydrograd. Fronted by the charismatic Corey Taylor (Slipknot), the band has sold more than four million albums worldwide over the course of five full-length releases. Known far and wide as a truly incendiary live act, Stone Sour has built an international fan following through countless headline tours, multi-artist caravans, and performances at such famed festivals as Rock In Rio and the UK’s Download Festival.