The Grand Ole Opry is celebrating its 90th anniversary this year, and some of the biggest stars in country music will appear in an upcoming concert film that pays tribute to the country music institution.

Brad Paisley, Blake Shelton, Darius Rucker, the Band Perry and Brett Eldredge got together at the Opry in Nashville on Aug. 31 to shoot the live concert sequences for American Saturday Night: Live From the Grand Ole Opry.

Shelton performed one of his first hits, "Ol' Red," and his recent single, "Sangria," according to People. He also joked about the Opry's policy of not allowing alcohol backstage, though the magazine reports that he was seen drinking from a flask as he left the stage after his performance.

Paisley paid solemn tribute to departed Opry legend Little Jimmy Dickens before he played, calling him "my best friend in this place." He turned in a five-song set that included "Southern Comfort Zone" and "American Saturday Night," which inspired the title of the film.

The documentary is tentatively slated for release in December.

"I'm so proud to be a part of it," Rucker tells Rolling Stone Country. "I'm one of the artists in it, talking about being a member of the Opry. I go there when I don't play, just to talk to people and hang out. I've seen Vince [Gill] there, not playing, just hanging out, Marty Stuart, Little Jimmy [Dickens], Jim Ed Brown, God rest his soul. I love being a member."

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