Hydrograd is the sixth and most recent 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 premiere with commentary on each song from frontman Corey Taylor on June 29, 2017 on Octane (Sirius XM). Two singles were released in promotion of the album ahead of its release: "Fabuless" and "Song #3". A third single, "Rose Red Violent Blue (This Song Is Dumb & So Am I)", was released on September 13, 2017. On October 24, 2017, Hydrograd won the award for Hard Rock Album of the Year at the Loudwire Music Awards. On April 4, 2018, the album's fourth single, “St. Marie” was released.

Hydrograd is the first album to be produced without founding guitarist Jim Root, as he departed Stone Sour in 2014 to focus more on his and Corey's other band Slipknot. On August 23, 2018, the album's fifth single, "Knievel Has Landed" has been released. Hydrograd is the last album the band released before they entered an indefinite hiatus in 2020.

According to Johny Chow, the record is said to be a departure from previous Stone Sour albums, more of a rock-and-roll album. He also mentions that the album has more of a groove feel to it and very melodic with large choruses added to it. A total of 19 songs were recorded, with 15 making the final cut on the standard edition, while the other 4 were later released on the deluxe version.^[3]

More information Aggregate scores, Source ...

Professional ratings

Aggregate scores
Source	Rating
Metacritic	73/100[4]
Review scores
Source	Rating
AllMusic	[5]
Blabbermouth.net	[6]
Cryptic Rock	[7]
Kerrang!	[8]
Loudwire	(Positive)[9]
Rock Sins	[10]
Metal Injection	[11]

Close

Reviews for Hydrograd were very positive. Ali Cooper of Rock Sins gave the record a 10 out of 10, calling it a risk-taking gem for Stone Sour and Slipknot fans.^[10]

Hydrograd debuted at number eight on the US Billboard 200 with 33,000 album-equivalent units, with 30,000 of that figure coming from pure album sales.^[12] Hydrograd would go on to win Hard Rock Album of the Year in the 2017 Loudwire Music Awards

All lyrics written by Corey Taylor; all music composed and performed by Stone Sour.

Stone Sour

• Corey Taylor – lead vocals, guitars, backing vocals, art direction
• Josh Rand – guitars, backing vocals, art direction
• Christian Martucci – guitars, backing vocals, talk-box on "Live Like You're on Fire", art direction
• Johny Chow – bass, backing vocals, art direction
• Roy Mayorga – drums, backing vocals, art direction

Additional personnel

• Sergei Ponzirelli – voice-over on "YSIF"
• Pearl Aday – backing vocals on "St. Marie"
• Joel Martin – Pedal steel guitar on "St. Marie"
• Dan Kaneyuki – orchestral musician
• Brian Mantz – orchestral musician
• Megan Milius – backing vocals
• George Adrian – backing vocals
• Alejandro Baima – backing vocals
• Francesco Cameli – backing vocals
• Rem Massingill – backing vocals
• Jason Christopher – backing vocals
• Matthew "Stubs" Phillips – backing vocals

Technical personnel

• Jay Ruston − producer, engineering, mixing
• Francesco Cameli – engineering
• Alejndo Baima – engineering
• John Douglass – additional engineering
• Paul Logus – mastering
• Ron "REM" Massingill – guitar and bass technician
• Jon Nicholson – drum technician
• Gary Myerberg – studio technician
• Invisible Creature, INC. – art direction
• Ryan Clark (for Invisible Creature, INC.) – album design
• Travis Shinn – photography