Jason Isbell, Emmylou Harris, Keb’ Mo’, Indigo Girls, Buddy Miller, Paul Thorn, Mary Gauthier, Shawn Mullins, Justin Townes Earle, Amanda Shires, Chuck Cannon, The War and Treaty, Steve Poltz and Bonnie Bishop. Newcomers include Ariana Gillis, Will Kimbrough, Carlene Carter, Raul Malo, Billy Bragg, Josh Ritter, Tommy Emmanuel, Brett Dennen, Molly Tuttle and Phil Madeira.