Aaron Watson Annie Downs Band Against Cancer Blondie Bob Weir Brett Young Canaan Smith Cash Campbell Chrissy Metz Cloak Elvie Shane Darius Rucker Hootie & the Blowfish Iris Apfel Jason Aldean Kristin Chenoweth Lee Ann Womack Maddie & Tae Music Health Alliance Nickelback Rascal Flatts Rodney Atkins Sarah Cannon Tyler Booth Tenille Arts Tracy Lawrence Tyler Farr Waylon Payne We Are Messengers Vince Gill