How Prince William Feels About That "Shake It Off" Video From Taylor Swift's Concert

Call him "Mr. Perfectly Fine."

Prince William turned off his royal persona and became a true Swiftie when he took his children, Prince George and Princess Charlotte, to see Taylor Swift perform at Wembley Stadium on Friday. While George and Charlotte—and William, for that matter—certainly loved getting to see the pop star perform her hits in London, the internet fell in love with the Prince of Wale's dancing during the concert—and he doesn't seem to mind.

During the 1989 segment of The Eras Tour, Swift performed her hit track "Shake It Off." Fans at the stadium zoomed into William's section and saw him energetically shaking his body and snapping his fingers to the song, with his dance skills ultimately showing a less buttoned up version of himself that is rarely seen by the public.

According to Entertainment Tonight, William isn't bothered by his "dad dancing" going viral online. In fact, he's "Mr. Perfectly Fine" with it. A source told the outlet, "He is focused on his wife and children right now. He really just wanted it to be a special night for Prince George and Princess Charlotte."

Although the concert fell on William's 42nd birthday, the tickets were mostly for Charlotte, who is reportedly the biggest Swiftie amongst the family. "Princess Charlotte is the huge Taylor Swift fan in the family," a second source told ET. "She has wanted to go to the concert for months, but with her mum being treated for cancer, this was a really special day to be able to celebrate her papa’s birthday like this. Charlotte absolutely loved it."

"They are really wonderful children. William and Kate have done a fantastic job raising all three of them," the source continued. "They understand and appreciate how lucky they are meeting someone like Taylor Swift."

Following the concert, Swift posed for a selfie with William and his family and both posted it to their respective Instagram pages. On the pop star's page, she used the post as a way to go Instagram official with boyfriend Travis Kelce, as they posed along the royal family for a selfie. "Happy Bday M8! London shows are off to a splendid start," Swift captioned the photo.

Over on the Wales's official Instagram, a photo—minus Kelce—was captioned, "Thank you @taylorswift for a great evening! #LondonTSTheErastour."

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