Fest In Show: CMA Fest airs tonight on ABC-TV at 8pm ET. The three-hour special was taped at this year's CMA Music Festival and is hosted by Thomas Rhett and Kelsea Ballerini. Performers include Dierks Bentley, Garth Brooks, Brothers Osborne, Luke Bryan, Eric Church, Dan + Shay, Brett Eldredge, Florida Georgia Line, Sam Hunt, Lady Antebellum, Miranda Lambert, Little Big Town, Dustin Lynch, Maren Morris, Old Dominion, Brad Paisley, Rascal Flatts, Darius Rucker, Blake Shelton, Cole Swindell, Keith Urban, Brett Young and Chris Young.