Hey, guess what? Imagine two huge artists teaming up for a surprise that blows fans’ minds. Well, that’s exactly what went down during Taylor Swift’s Red Tour in 2013, when she and country legend Luke Bryan joined forces.

Fans expected some cool stuff during Taylor’s epic world tour from March 2013 to June 2014, but nobody saw a special version of Luke Bryan’s hit “I Don’t Want This Night to End” coming. And get this: they recorded it live during the tour! You can check out the awesome video, complete with behind-the-scenes action, here:

Taylor Swift feat. Luke Bryan: I Don’t Want This Night to End (DVD The RED Tour) Bonus

Taylor, with the crowd eating out of her hands, teased, “You know how special you are to me; you know how much I love you, right? So you must have known that I wasn’t going to show up here without a surprise for you. and this one’s really good!” The audience lost it when they realized a brand new duet was about to go down, and Luke Bryan was grinning ear to ear as he hit the stage.

Now, Luke Bryan’s a big deal in the country scene, scoring around 30 number-one hits and snagging awards like ‘Album Of The Decade’ for “Crash My Party” in 2013. Plus, he got ‘Entertainer of the Year’ at the Academy of Country Music Awards. Check out the OG version of “I Don’t Want This Night To End” here:

Luke Bryan: I Don’t Want This Night To End (Official Music Video)

Despite fans begging for it, the duo never hit the studio to officially record the song together afterward. Maybe it’s for the best, keeping it as a magical, random surprise from one of the craziest tours in today’s music scene.