Tommy Iommi, Geezer Butler, Angus Young, Gary Moore, Eric Clapton, Billy F. Gibbons, Carlos Santana, Van Halen, Johnny Winter, Walter Trout, Warren Haynes, Geddy Lee, Alex Lifeson, Jimmy Page, John Paul Jones, Victor Wooten, Derek Trucks, Paul Rodgers, Gladys Knight, Sammy Hagar, Mark Knopfler, Scotty Moore, Sonny Landreth, Chet Atkins, Brent Mason, Billy Powell, Gary Rossington ect... and now...Guthrie Govan!!