Kings of Chaos is a hard rock supergroup with international membership featuring a core lineup of drummer Matt Sorum, bassist Duff McKagan, and guitarist Gilby Clarke, as well as a revolving appearances from members of Def Leppard, Deep Purple, Aerosmith and more. The group plays songs from all of these bands, and other classic rock covers. To date, they have only recorded and released one song, "Never Before", on the Deep Purple tribute, Re-Machined: A Tribute to Deep Purple's Machine Head.

Matthew William Sorum is an American drummer. He is best known as both a former member of the hard rock band Guns N' Roses, with whom he recorded three studio albums, and as a member of the supergroup Velvet Revolver. Sorum is currently on tour with Billy Gibbons, with whom he also records, is a member of the touring project Kings of Chaos, and is a former member of both The Cult and Y Kant Tori Read. Sorum was also a member of Guns N' Roses side projects, Slash's Snakepit and Neurotic Outsiders, and has released two solo albums, Hollywood Zen (2004) and Stratosphere (2014). He was the touring drummer for the supergroup Hollywood Vampires from 2015 to 2017. His latest project is Deadland Ritual, featuring Black Sabbath bassist Geezer Butler, Billy Idol guitarist Steve Stevens, and Apocalyptica vocalist Franky Perez.