The CMA Awards were full of star-studded performances during its 50th show on Wednesday night. In celebration of Dolly Parton's lifetime achievement award, singers from all different genres took to the stage to perform some of her greatest songs. Pentatonix kicked things off with a hauntingly beautiful version of "Jolene," while Reba McEntire and Kacey Musgraves rounded things out with some equally catchy hits. The best part, of course, had to be when the performers united on stage to sing "I Will Always Love You." Let's just say it pretty much moved us to tears.