Taylor Swift brought her Eras Tour to London’s Wembley Stadium on Friday with some famous faces in the audience, including the Prince of Wales and two of his children, Prince George and Princess Charlotte. William, who was celebrating his 42nd birthday that day, and the children later met Swift and her boyfriend, NFL star Travis Kelce backstage.

Swift opened the show by thanking the crowd for being there, “…especially on a Friday night in the summer on a beautiful day in London,” and reminisced about gigs she performed in the city earlier in her career.

Swift is set to perform eight shows in London. According to the Mayor of London, nearly 700,000 people are expected to attend her London shows, which are predicted to boost the capital’s economy by £300 million ($379.5 million USD).