Mike Portnoy (Dream Theater) Vinnie Paul (Pantera) Dave Lombardo (Slayer) Jaska Raatikainen (Children of Bodom) Jorg Michael (Stratovarius) Daniel Erlandsson (Arch Enemy) Adrian Erlandsson (At the Gates, ex Cradle of filth) Paul Bostaph (Testament) Jean Dolabella (Sepultura) Richard Christy (Death) Andy Galeon (Death Angel) Neil Peart (Rush) Peso (Necrodeath) Scott Travis (Judas Priest) Paul Mazurkiewice (Cannibal Corpse) Ken Owen (Carcass) Daniel Svensson (In Flames) Nicko Mcbrain (Iron Maiden) Ian Paice (Deep Purple) Lars Ulrich (Metallica) Gene Hoglan (Strapping Young Lad, ex Dark Angel) Tony Laureano (Dimmu Borgir) Nicholas Barker (ex Testamente, Cradle of filth e Dimmu borgir) Tomas Haake (Meshuggah) Shawn Drover (Megadeth) Jukka Nevalainen (Nightwish) Johan Langell (Pain of Salvation) Raymond Herrera (Fear Factory) Pete Sandoval (Morbid Angel) Alessio Spallarossa (Sadist) Mercedes Lander (kittie) Jon Allen (Sadus) Ian Haugland (Europe) Rob Gardner (Gun's n Roses) Phill Rudd (AC/DC) Martin Axenrot (Opeth) Frederik Ehmke (Blind Guardian) Dave Grohl (ex Nirvana, QOTSA) Mike Terrana (ex Rage), Dave Weckl, Gene Krupa...