It was like a mini-Hollywood premiere when Grammy-winning trio Lady Antebellum treated fans of the upcoming movie, "The Best of Me," to a special concert last night (Oct. 9) at the Country Music Hall of Fame and Museum in Nashville.

The new romantic drama - based on the bestselling novel by Nicholas Sparks - stars Michelle Monaghan, James Marsden, Luke Bracey and Liana Liberato. The movie is due out Oct.17.

And author Sparks was at the Nashville event.

Lady Antebellum were joined on stage by host Bobby Bones and other artists featured on the just released soundtrack, SHEL with Gareth Dunlop, Thomas Rhett and Colbie Caillat.

The soundtrack from the movie showcases the songs of Lady Antebellum, Hunter Hayes, David Nail, Kacey Musgraves, Kip Moore, the Eli Young Band, Eric Paslay, Thompson Square, Thomas Rhett and more.

Lady A has two songs on the soundtrack: "I Did With You" and "Falling for You." Hayes has "Dream Girl," Musgraves has "Love Is a Liar," Nail has "All the Way" and the Eli Young Band has "Unchanged."

"I have a feeling the movie is going to be like Romeo and Juliet meets Nail's 'The Secret' meets Garth Brooks' 'Unanswered Prayers,'" declares Alison Bonaguro of CMT.com. "It's being called an epic love story about teenage sweethearts who reunite in their small town for a funeral after 20 years."