Ozzy Osbourne – lead vocals, harmonica (track 6)
Andrew Watt – guitars, production, keyboards (tracks 2, 4-10), piano (track 4), bass guitar (track 7)
Duff McKagan – bass guitar (tracks 1-6, 8-10)
Chad Smith – drums, percussion (tracks 1-9)
Slash – guitar (tracks 1, 4)
Charlie Puth – keyboards (tracks 1, 2, 5, 9)[17]
Elton John – piano and co-lead vocals (track 4)
Tom Morello – guitar (tracks 8, 10)
Post Malone – co-lead vocals (tracks 10, 11)
Caesar Edmunds – synth bass programming (track 1), synth bass (tracks 2, 3, 6, 9, 10)
Happy Perez – keyboards (tracks 5, 8)
Louis Bell – keyboards (track 10)
Travis Scott – vocals (track 11)
Kaan Gunesberk – programming (track 11)