Princess Charlotte Is the Taylor Swift Fan in Family, Has Been Wanting to Go to a Show for Months (Exclusive) [Video]

While Prince William enjoys a good dance session at a Taylor Swift concert, it’s his daughter, Princess Charlotte, who’s the real Swiftie in the family.

A source tells ET, “Princess Charlotte is the huge Taylor Swift fan in the family. 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 [the concert],” the source adds. “They are really wonderful children. William and Kate have done a fantastic job raising all three of them. They understand and appreciate how lucky they are meeting someone …