The three-hour special, hosted by reigning CMA Vocal Group of the Year Little Big Town, airs tonight at 8 p.m.
"We were a little shaky and nervous the first year, but now we feel really comfortable, and it's been a blast," one of LBT’s guitarists, Jimi Westbrook, told ABC News. "It's such a cool thing 'cause we're here for the entire thing. We get to see everybody that's here and hang out with them and listen to them play. It's just a great experience."