Prince William celebrated his 42nd birthday at Taylor Swift's concert in London, attending with his two eldest children, Prince George and Princess Charlotte. The British royals posed for photos with Swift and her boyfriend, Travis Kelce, and William was seen dancing to "Shake It Off." The Prince of Wales is a certified Swiftie, as he joined the massive crowd at Wembley Stadium for the European leg of The Eras Tour. The event showcased the royal family's modern and relatable side, highlighting their support for popular culture and music. This appearance added a touch of glamour and excitement, proving that even royals enjoy a good concert and are not afraid to show their enthusiasm for a talented artist like Taylor Swift.