Jackson Browne in recent years.
GRINNELL, IA - NOVEMBER 20: Musician Jackson Browne performs with Bonnie Raitt while campaigning for former U.S. Senator and democratic presidential hopeful John Edwards (D-NC) at Grinnell College, November 20, 2007, in Grinnell, Iowa. Raitt and Browne are performing short concerts for Edwards who is on a two day campaign swing through Iowa. (Photo by David Lienemann/Getty Images)