King 810 is an American nu metal band from Flint, Michigan, formed in 2007. The band currently consists of David Gunn and Eugene Gill. The band's first release was their independent EP titled Midwest Monsters in 2012, which earned them a signing with Roadrunner Records; they released their second EP titled Proem in 2014, and their debut studio album Memoirs of a Murderer that same year.

Slipknot is an American heavy metal band formed in Des Moines, Iowa, in 1995 by percussionist Shawn Crahan, former vocalist Anders Colsefni and bassist Paul Gray. After several lineup changes in its early years, the band settled on nine members for more than a decade: Crahan, Gray, Joey Jordison, Craig Jones, Mick Thomson, Corey Taylor, Sid Wilson, Chris Fehn, and Jim Root. Slipknot is well known for its attention-grabbing image, aggressive style of music, and energetic and chaotic live shows.