Hydrograd is the sixth studio album by American rock band Stone Sour. Recorded at Sphere Studios in Los Angeles, it is the follow-up to the band's 2012–2013 double concept album, House of Gold & Bones Part 1 and 2. It was released worldwide on June 30, 2017 via Roadrunner Records. Hydrograd also had a special album premier with commentary on each song from front man Corey Taylor on June 29, 2017 on Octane. Four singles were released in promotion of the album ahead of its release; "Fabuless", "Song #3", "Taipei Person/Allah Tea" and "Mercy".