Originally formed as a side project towards the last couple of years of Motörhead by Phil Campbell, the former Motörhead guitarist of 32 years, the band decided to take it up a level and revealed the new name of Phil Campbell and the Bastard Sons at Wacken Open Air 2016. Shortly after the band announced to the world the recruitment of new powerhouse lead singer Joel Peters in January 2022, the group entered their studio at Stompbox Studios, South Wales, UK and began writing and recording 'Kings of the Asylum' at the beginning of 2022. After putting the songwriting groundwork in throughout the Spring, the bastards then entered their busiest festival season to date including performances at major festivals such as Wacken Open Air, Hellfest, Graspop Metal Meeting and many more throughout the summer of 2023. After the busy festival season the band then had time to reconvene to put the finishing touches on the 2023 album. Phil Campbell commented, 'It's been a great experience writing this album alongside Joel and the rest of my lads. We've come up with some monstrous riffs and hooks for your listening pleasure.