Brandi Carlile
as Herself
Glen Hansard
as Himself
Emmylou Harris
as Herself
Chaka Khan
as Herself
Diana Krall
as Herself
Los Lobos with La Marisoul
as Themselves
Cesar Castro & Xochi Flores
as Themselves
Graham Nash
as Himself
Seal
as Himself
James Taylor
as Himself
Rufus Wainwright
as Himself