Kate Middleton and Prince Louis were noticeably absent from Taylor Swift's Eras Tour in London, where Prince William and their two eldest children, Princess Charlotte and Prince George, attended the concert. Despite Kate's recent public appearance following her cancer diagnosis, she stayed home with Louis while the rest of the family enjoyed the show. It is unlikely that Kate will attend future concerts, according to a source. William and Swift shared photos together after the concert, showing their mutual appreciation. The event drew a star-studded crowd, including Ashton Kutcher, Mila Kunis, and Tom Cruise. Swift's final London show for this leg of the tour will be on June 23, with more dates scheduled in August. William's enthusiastic dancing to "Shake It Off" showed his long-time support for the singer.