Taylor Swift was in London as part of her Eras Tour, performing at Wembley Stadium. On her 3rd show there, however, she gave fans a surprise by bringing her boyfriend, Travis Kelce, onstage. Oh, and she also met with Prince William and his children.

The 34-year-old pop superstar briefly paused her performance to change outfits as she was about to perform "I Can Do It With a Broken Heart." However, she then shocked fans as there was a very big change to her usual performance. She brought out the Super Bowl-winning boyfriend, who was dressed in a tuxedo and top hat for the performance.

Kelce, who started publicly courting Swift last year before they finally started dating, became one of his high-profile girlfriend's backup dancers for the performance and was the dancer who carried the Grammy winner onstage during the segment. Needless to say, the London crowd went crazy.

The Chiefs tight end came on stage and needed no introduction, carrying her and soon started dancing, eventually carrying her around inside the world-famous stadium. Fans roared that the athlete danced around with a massive smile on his face, even touching up his girlfriend's makeup as part of the skit.

As PEOPLE Magazine noted, this was the first time that Kelce ever joined the "Shake It Off" singer since they started dating last year. She made headlines just by appearing at his games and even the Super Bowl, which he and his Kansas City Chiefs won.

Taylor Swift, Travis Kelce Met With Prince William, Future King of England, and His Children

After Meeting with Joe Biden after winning the Super Bowl, Travis Kelce met with another world leader, this time, the UK's next king, the Prince of Wales, Prince William, as well as his two children with Kate Middleton, Prince George and Princess Charlotte. Their mother was not able to attend as she was battling with cancer.

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According to CNN, the singer showed a selfie of herself with the Royals along with Travis Kelce on her Instagram page. This was also the first time she has shared a photo featuring Kelce on her main Instagram feed. This means that this was their first "Instagram official" post, even though they have been dating for quite some time now.

Prince William celebrated his 42nd birthday at the show, and Taytay greeted him with a happy birthday on Instagram.

Taylor Swift Has a Bitter History with London

British fans are speculating that Taylor Swift might not stay in the ancient British capital for long, as the city of London holds bitter memories for her as it served as her second home for a while.

In her latest album, "The Tortured Poets Department," the fifth track is titled "So Long, London." As her Eras Tour hit the city, British Swifties were wondering if they were witnessing the beginning of an extended goodbye, according to the Associated Press.

One of the songs she performed that night was "The Black Dog," which was said to have been inspired by her 2023 breakup with English actor Joe Alwyn, whom she was dating for six years. She lived part-time in London while she was dating him.

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Written by: Rick Martin

WATCH: Travis Kelce Makes Surprise Cameo During Taylor Swift's Eras Tour in London - E! News