Maren Morris, Brandi Carlile Duet on Last Night of CMA Fest
They killed it!
CMA Fest
CMA Fest 2019, Day 4: Luke Bryan, Maren Morris + More
CMA Fest 2019 concluded on Sunday (June 9).
WATCH: Miranda Lambert Debuts 'Locomotive' at CMA Fest 2019
It was her first time ever performing it!
Watch Carrie Underwood and Joan Jett's Surprise CMA Fest Duets
"I'm a fan on every level. Personally, professionally, musically," Underwood gushed backstage before her performance with Jett.
LOOK: What You Missed at CMA Fest 2019, Day 1
CMA Fest 2019 kicked off with a bang on Thursday (June 6).