Ben Harper Jack Johnson Jason Mraz Dave Matthews Dispatch O.A.R. John Mayer Counting Crows Matt Nathanson Howie Day Guster G Love And Special Sauce Jimmy Buffett John Butler Trio Xavier Rudd Alana Davis Ray Lamontagne Tracy Chapman Amos Lee Damien Rice Ben Harper And The Innocent Criminals Bob Marley Eddie Vedder Jack Johnson And Friends Norah Jones Incubus Donavon Frankenreiter Pearl Jam David Gray The Cat Empire Jeff Buckley Joshua Radin Peter Tosh The Beautiful Girls Ryan Adams Sublime Nahko And Medicine For The People Bon Iver Coldplay Citizen Cope Ani Difranco Red Hot Chili Peppers Ari Hest The Waifs Greyboy Allstars Van Morrison Matt Costa Alexi Murdoch Manu Chao