Metallica, The Misfits(With Glenn Danzig), Megadeth, Testament, Anthrax, Exodus, Steve Vai, Joe Satriani, Black Sabbath, Dio, Ozzy Osbourne, Suicidal Tendencies, Metal Church, Pantera, Machine Head, Mastodon, Deep Purple, Iron Maiden, Judas Priest, Death, Sepultura, Sodom, Kreator. Big list but...