Matt Sorum's touring project Kings of Chaos has yet to feature members of Deep Purple.
 The release of the full-length album would later be postponed to 7 August 2020 due to the COVID-19 pandemic
 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)

