Prince William takes a Christmas selfie with Taylor Swift and Travis Kelce

• Prince William attended the Eras Tour with Prince George and Princess Charlotte in London.
• The British royal family posed for photos with Swift and her boyfriend, Travis Kelce.
• The footage showed William, who celebrated his 42nd birthday, dancing to Shake It Off.

The Prince of Wales is a certified Swiftie.

William rang in his 42nd birthday on Friday at Taylor Swift's party in London with his two older children, Prince George, 10, and Princess Charlotte, 9.

Members of the British royal family were among the massive crowds that arrived at Wembley Stadium, where Swift, 34, kicked off the European leg of her Eras Tour.

The trio celebrated the night by pretending to… Selfie with SwiftWhich they thanked in an Instagram post on the official account of the Prince and Princess of Wales.

“Thank you @TaylorSwift for a wonderful evening!” The caption was read on Saturday.

Swift also participated Instagram photo Saturday features the Royals and her boyfriend, Travis Kelce. The whole group was smiling in the photo.

Swift's comment read: “Happy Birthday M8! The London shows are off to a great start.”

William's presence on The Eras Tour didn't go unnoticed by Swifties, including the one who took part Tik Tok video From him dancing to the song “Shake It Off”.

Neither Catherine, Princess of Wales, nor six-year-old Prince Louis appeared at the ceremony. Kate, 42, made her first public appearance since her cancer diagnosis earlier this month at the Trooping the Color Parade.

Kate shared details about her recovery on Instagram share A day before the show, she said she was making “good progress” with her chemotherapy.

“I'm looking forward to attending the King's Birthday Parade this weekend with my family, and I hope to join in some public engagements over the summer, but I also know I'm not out of the woods yet,” the caption read. “I'm learning how to be patient, especially with uncertainty. I'm taking each day as it comes, listening to my body, and allowing myself to take this much-needed time to heal.”

Representatives for Kensington Palace, Swift and Kelsey did not immediately respond to a request for comment from Business Insider.