Good Morning America's Lara Spencer wowed fans on Wednesday as she shared two behind the scenes snaps of the Country Music Association awards.MORE: Carrie Underwood wows in ripped denim outfit as she joins Jason Aldean on stageOne was with host Luke Bryan, and the other saw her join Old Dominion, joking that she was the "new tambourine player".WATCH: Carrie Underwood and Jimmie Allen discuss 2021 CMAs"Such fun watching this guy prepare to host (and perform at!!) the CMA AWARDS," she added