Derek Sherinian is an American keyboardist of Armenian descent who has toured and recorded for Alice Cooper, Billy Idol, and Joe Bonamassa, among others. He was also a member of Dream Theater from 1994 to 1999, is the founder of Planet X and also one of the founding members of Black Country Communion, Sons of Apollo, and Whom Gods Destroy. He has released nine solo albums that have featured a variety of prominent guest musicians, including guitarists Slash, Yngwie Malmsteen, Allan Holdsworth, Steve Lukather, Joe Bonamassa, Michael Schenker, Steve Vai and Al Di Meola, and extensively drummer Simon Phillips.

Sons of Apollo was an American progressive metal supergroup formed in 2017 and composed of drummer Mike Portnoy, bassist Billy Sheehan, keyboardist Derek Sherinian, vocalist Jeff Scott Soto, and guitarist Ron "Bumblefoot" Thal.