These six hopefuls will pair off and compete in battle rounds, judged by Ballerini, for a chance to re-enter the main competition in November and take a spot in the top 13 and compete for the crown.
The "I Hate Love Songs" singer announced the news on Instagram on Monday, sharing a Boomerang of herself making a peace sign while standing in front of the show's iconic V logo and smiling broadly.
"Y’all, I have been SO excited to share that I’m joining the @nbcthevoice family this fall as the 5th coach for the first ever 'Comeback Stage'. It’s been such a new, fulfilling challenge and I’ve been beyond inspired by the artists I’ve gotten to meet and work with," Ballerini, 24, captioned the post. "I can’t wait for you to fall in love with them."