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Two of country music's biggest stars teamed up for a surprise duet at the Bridgestone Arena in Nashville on Thursday, Sept. 18. Taylor Swift invited Luke Bryan on stage to perform "I Don't Want This Night to End" during the first of three sold out hometown shows.

Before the night's special guest came out, however, Swift—wearing a Grand Ole Opry T-shirt and red shorts—playfully teased the audience. "You must have known that I wasn't going to show up here without a surprise," she told the crowd. "Because he's a really, really good one. I think you're really, really gonna like him. Because this is an artist everybody really, really, really likes."

Taylor Swift, Luke Bryant

Larry Busacca/TAS/Getty Images for TAS

After Swift, 23, announced that Bryan, 37, would be joining her on stage, the crowd went wild. Later that night, the crossover cutie tweeted about their performance. "Nashville. That show was life changing & you were PERFECT," Swift wrote. "Thank you to @LukeBryanOnline, who came out and SLAYED. Never going to forget it."

During her Red tour, Swift has performed with a number of surprise guests, including Jennifer Lopez, Sara Bareilles, Tegan and Sara, Cher Lloyd and Ed Sheeran.

Wonder who'll she bring onstage next!