What do the following people all have in common?
Jeff Ament
Jon Anderson
Fiona Apple
Erykah Badu
Joan Baez
Beastie Boys
Jeff Beck
Brandy
Kate Bush
Belinda Carlisle
Paula Cole
Bob Dylan
Melissa Etheridge
Peter Gabriel
Kirk Hammett
Steve Howe
Chrissie Hynde
Billy Idol
Incubus
Michael Jackson
Joan Jett
Howard Jones
Anthony Kiedis
Lenny Kravitz
Bob Marley
Paul McCartney
Meatloaf
Moby
Alanis Morissette
Steve Morse
Steve Perry
Prince
Rage Against the Machine
Nick Rhodes
Johnny Rotten
Siouxsie Sioux
Skinny Puppy
Grace Slick
Ringo Starr
Steve Vai
Eddie Vedder
"Weird" Al Yankovic
the Zappa's
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