Kelsea Ballerini played at the Listening Room Cafe in downtown Music City earlier this month (April 5) as part of Tin Pan South, Nashville's own songwriter festival. In the middle of her set, the rising country starlet invited a young aspiring singer on stage for some vocal help.

"I met this adorable human in the meet and greet line," Ballerini said, motioning for her mini-me to join her on stage. "She was saying she liked my music, and I said, 'Well, what's your favorite song?' and she said 'High School.' And this song isn't even out anywhere, so she's singing. Oh, she's singing."

Josh Kerr, who was also on stage, handed his microphone to the adorably small singer and she was immediately put in the spotlight. After a very cute exchange of who would start singing first, Ballerini and her fan traded off lines of the track.

"This ain't high school / Where all you care about is if the pretty cheerleader thinks you're cool / See ya Friday, I'll pick you up after the football game / Because it's five years later, and you can't get off of the elevator / That's going up, cause you're growing up / And the world gets cruel / And you're still living in high school," the two girls sang, which made for a very touching performance.

Ballerini is now in preparation to hit the road with Chris Lane as part of the Rascal Flatts Rhythm and Roots Tour, which will kick off this June in North Carolina.

Highlights of Being Kelsea Ballerini

Watch Kelsea Ballerini Sing "Dibs" Acoustic