The superstar singer teased the announcement just hours ahead of the Grammys on Feb. 2.
The country star brought spangled production and heartfelt songs to make her Bridgestone Arena show both intimate and a musical spectacle.
"You don’t have to be a country artist to make a country record," she shared. "Those don’t have to exist in the same plane.”
“A Bar Song (Tipsy)” has been No. 1 every time since the quarterly TouchTunes charts were launched.
Billboard looks at country artists who have had top roles in musicals throughout the years.
Jelly Roll and series creator/star Max Thieriot recently filmed a promo video for the upcoming episode.
The country trio will launch the headlining Life Is a Highway Tour in February.
The Nashville singer brought a little country to the event benefiting Los Angeles wildfire relief efforts.
Vaughn joined the company in 2012.
"What's better than three?" the singer says in the clip.
