Lady Antebellum has sold out back-to-back shows at Nashville's Ryman Auditorium. Tickets for the reigning CMA Vocal Group of the Year's first headlining show -- which at first, was only scheduled for March 11 -- were snapped up in minutes after they went on sale Friday morning. Another show was immediately added for March 10, and now, that show has sold out as well.

"To the fans: YOU ARE THE GREATEST!" Hillary tweeted Friday morning. "Thanks to YOU we sold out 2 nights at the Ryman Auditorium March 10-11 in 15 minutes! We love you! -hills"

"Playing the Ryman has been at the top of our list of goals since we first got together to write songs," Hillary told CMT before tickets even went on sale.

"I mean, it's a BIG one. The history of that building and the Grand Ole Opry and all the icons and legends who have played there over time is untouchable ... we hold all of that history really close."

The Grammy-nominated trio just celebrated a five week run at No. 1 with their smash hit, 'Need You Now' -- the first single off their new album of the same title, to be released Tuesday, Jan. 26. 'American Honey' is their latest single.

More From TheBoot