The country quartet welcomed Luke Bryan, Lee Ann Womack and Alison Krauss to the stage as surprise guests during their two-night Ryman Auditorium residency.
The list of country superstars who have been performing the National Anthem ahead of the Nashville Predators' home games during the 2017 Stanley Cup Playoffs has hit a nerve with the team's regular anthem singer, Dennis K. Morgan.
Luke Bryan rocked the launch of his 2017 Huntin,' Fishin' and Lovin' Every Day Tour in Nashville over the weekend, and he brought out a special guest on Saturday night's show.