This is fun!

Don Henley
J.D. Souther
Glenn Frey
Jackson Browne
David Crosby (CSNY)
Stevie Nicks
Bob Seger
Roger Waters
Linda Ronstadt
Timothy B. Schmit

Special mention:

Mark Knopfler
Chrissie Hynde
Natalie Merchant
Brandi Carlile
Chad Kroeger
Amy Lee