Great line up. Here's a few more:

John Prine
Loudon Wainwright
Kate Bush
Townes Van Zandt
Judee Sill
Bowie
Muddy Waters
Leonard Cohen
Prince
Nick Drake
Donovan
Jack Bruce
Eddie Vedder
Van Morrison
Jackson Browne
George Clinton
John Phillips
Hendrix
Tommy James
Johnny Cash
Jimmy Page
Robert Plant
Roger McGuinn
Robbie Robertson
Marvin Gaye
Bob Marley
Freddy Mercury
Bill Withers
David Byrne
Bo Diddly