Attack!! is an album that included the keyboardist from which group from 1994-99?
Derek Sherinian Derek Sherinian (born August 25, 1966) is an American keyboardist who has toured and recorded for Alice Cooper, Billy Idol, Yngwie Malmsteen, Kiss, Steve Vai, and Joe Bonamassa. He was also a member of Dream Theater from 1994–99, is the founder of Planet X and also one of the founding members of Black Country Communion and Sons of Apollo. He has released seven solo albums that have featured 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.
Joey Vera Joseph "Joey" Vera (born April 24, 1963) is an American heavy metal bassist who is known as a member of the heavy metal band Armored Saint and the progressive metal band Fates Warning. In 2004-2005 he replaced Frank Bello in Anthrax as the band's bassist, but did not record with them. He was also a member of Engine, recorded with Tribe After Tribe, and appears on the OSI album "Free". His first solo album, "A Thousand Faces", was released in 1994. His current solo project, A Chinese Firedrill, released an album titled "Circles" in 2007.