Richard Fortus (Guns N' Roses / Dead Daisies)

Billy F. Gibbons (ZZ Top)

Joe Perry (Aerosmith)

Brad Whitford (Aerosmith)

Tommy Shaw (Styx)

Keith Urban

Mark Tremonti (Creed, Alter Bridge, Tremonti Project)

Jason Hook (Five Finger Death Punch)

Vivian Campbell (Def Leppard / Dio / Whitesnake)

Phil Collen (Def Leppard)

Neal Schon (Journey)

Bill Kelliher (Mastodon)

Michael Wilton (Queensryche)

Mick Jones (Foreigner)

Barry Stock (Three Days Grace)

Bobby Schneck Jr (Devon Allman Band)

Mike Mushok (Staind / Newsted)

Tom Dowd (Legendary Producer)

Richard Krupse (Rammstein)

Chris Traynor (Bush / Gavin Rossdale)