Prince William, George and Charlotte are the latest celebrity Taylor Swift fans at the UK show

Prince William and two of his children are the latest celebrity Taylor Swift fans to enjoy the megastar’s worldwide “Eras” tour.

Videos posted on social media showed the prince grooving to Swift’s song “Shake It Off” at Wembley Stadium on Friday.

Nine-year-old Princess Charlotte also sang along and her older brother George also attended the show. The youngest child, Prince Louis, stayed at home with his mother Kate Middleton.

Swift met the royal guests after the concert along with her boyfriend, Kansas City Chiefs tight end Travis Kelce, who wore a USA Olympic cap.

“Happy birthday M8! The London shows are off to a great start 🇬🇧🇺🇸🤝,” Swift wrote on Instagram. Prince William turned 42 on June 21.

It’s been a difficult year for the royal family. Middleton was being treated for cancer and was largely out of the public eye for months – leading to enormous speculation before she made her illness public in March.

On Friday, Middleton posted a photo of William and the children frolicking in Norfolk, England, last month. “Happy birthday Daddy, we all love you so much!” she wrote.

Earlier this month, Middleton announced that she was making “good progress” but was still having “good days and bad days” during her chemotherapy.