Dan + Shay took time off from their tour to stop at Disney World for a fan's wedding.
The surprise visit to Morgan Tilton and John Glennon's nuptials came complete with the duo performing an acoustic set of their song "Speechless."
After the performance, Shay joked, "I've crashed a lot of weddings. Never actually been invited to crash one before, so this is really cool. They usually kick us out of these things."
The surprise was planned with the help of Disney's Fairy Tale Weddings team, who worked with the bride's father to keep Dan + Shay's involvement a secret.
Watch how it went down in the video below: