15 28 Alan Jackson Allison Moorer Amy Grant Ben Folds Beth Hart Bob Seger Buddy Guy Chris Tomlin Crystal Gayle David Nail Delbert McClinton Dolly Parton Faith Hill Jamie O'Neal Janis Ian Jennifer Nettles Jimmie Van Zant Joe Diffie Joe Diffie Joe Nichols Joe Nichols Josh Gracin Kacey Musgraves Kathy Mattea Keb' Mo Keb' Mo' Kenny Chesney Kenny Rogers Leon Bridges Mark Knopfler Meghan Trainor Miranda Lambert Neal Morse Pam Tillis Patty Griffin Rodney Atkins Spock's Beard Stephen Sanchez The Band Perry Thomas Rhett Toby Keith Trace Adkins Trisha Yearwood Various Artists Vince Gill Wynonna Judd Yo La Tengo