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.
The benefit concert is set for Feb. 1 at the Rose Bowl in Pasadena, California.
The donation will aid both national and local charitable efforts.
Billboard looks at the writing and recording behind Dylan Schneider's "Better Than You Left Me."
The new song follows the duo's previously re
Tennessee native Parton revealed the upcoming summer dates for the musical during a press conference held at Belmont's Fisher Center For the Performing Arts.
