[1] In the summer of 2016, Cartelli was performing at a restaurant on Jetties Beach in Nantucket with a local islander when a bartender posted a video of her playing to Facebook.

She beat out over a hundred other contestants to earn a blind audition in front of the four celebrity judges, but wasn't picked for that season's show.

It was during this audition that she turned two chairs and wound up choosing Kelly Clarkson as her coach for the rest of the season.

In the Knockouts, she then defeated fellow team member Jamella with her rendition of "Here Comes Goodbye" by Rascal Flatts, and advanced to the Live Shows.

The latter two songs charted in the Top 10 of iTunes, giving Cartelli a download bonus multiplier for each performance.

During the Live Finale on May 21, 2018, Cartelli joined her coach, Clarkson, in a duet as they sang "Don't Dream It's Over" by Crowded House.

At the end of the night, Cartelli was named the winner of Season 14 of The Voice, becoming the youngest contestant to win the show.

The third was during the results show of the first week of the sixteenth season's Live Cross-Battles, when she performed another new original single of hers called "Grow Young".

Following this, Cartelli released singles "Girl Code,"[14] "Convertible in the Rain,"[15] "Secondhand Smoke"[16] (followed by an acoustic version), and "Lucky to Love You"[17] in preparation for her first album.

In January 2024, Cartelli released her next single "Boy From Home"[18] and announced her upcoming debut album, Out of the Blue.