Derek Sherinian 's solo albums have featured Joe Bonamassa among others .
He was also a member of Dream Theater from 1994-1999 , and is the founder of progressive metal/instrumental rock supergroup Planet X. Sherinian is also one of the founding members of Black Country Communion.. His solo albums often feature a variety of prominent guest musicians , including guitarists Slash , Yngwie Malmsteen , Allan Holdsworth , Steve Lukather , Joe Bonamassa , Billy Sheehan , Zakk Wylde and Al Di Meola .
Derek Sherinian