"5: The Gray Chapter" by Slipknot is a rock CD released in 2014 under RRD and Roadrunner Records. The album showcases the band's unique sound and style, incorporating elements of hardcore rock and heavy metal. The gray color theme ties in with the darker and more experimental direction taken by Slipknot in this release, making it a must-have for fans of the band and those who enjoy playing in the rock genre.