Amanda Seyfried Nathan Angelo Bethany Dillon Bebo Norman Lily James Ari Afsar Shane And Shane Jimmy Needham Barrett Wilbert Weed Jj Heller King The Kid Ben Rector Matt Maher Connie Britton Landon Pigg Charles Esten Andy Grammer Tyler Lyle Hayley Westenra Andre Rieu Steve Moakler Pinetop Seven Andrew Belle Benjy Davis Craig Cardiff Griffin House Fable Cry Marketa Irglova High School Musical Voltaire Meiko Carrie Hope Fletcher The Swell Season Tyrone Wells River City Extension Kari Jobe Lenka Nickel Creek Hillsong Plug In Stereo The Ready Set Mae Ella Eyre The Civil Wars Boyce Avenue Milo Greene Lady Antebellum The Zolas Gavin Degraw