Taylor Swift’s surprise guest at the London show, Travis Kelce, drives the crowd wild

Taylor Swift’s fans in London were treated to a special treat on Sunday: The appearance of her NFL star Travis Kelce on the stage of Wembley Stadium sent the crowd into a shrill, deafening cheer.

The screams were justified. It’s the first time Swift has called on Kelce to perform during her 151-show Eras Tour, but the Kansas City Chiefs star moved around the stage like a seasoned veteran.

Kelce appeared onstage during a transition in the “Tortured Poets Department” section of the show. Kelce and Swift, both 34, appeared to be performing some sort of skit. It began with Kelce appearing wearing a top hat and black tailcoat, carrying Swift in his arms.

Kelce fanned himself with a hand fan and danced around the stage, much to the delight of the audience, staring and smiling at Swift as her dancers helped her change costumes on stage.

The whole ordeal lasted about a minute, but many fans shared online that the shock performance was the highlight of the show. Before Swift said goodbye to Kelce to continue with her performance, videos showed her blowing him a kiss.

Videos show some notable names who witnessed Kelce’s stage performance, including Paul McCartney, Andrew Scott and Sophie Turner.

Swift’s shows at Wembley have been a hit with some of Britain’s most famous figures, including Prince William and his two children, Prince George and Princess Charlotte, who attended on Friday. Greta Gerwig, Tom Cruise and Hugh Grant were spotted at Saturday’s show.

Kelce’s stage appearance came just one day after Swift posted a photo of him on her Instagram account, making the performance “Instagram official,” about eight months after she shocked the world with her performance at a Chiefs game.