Britain's Princess Charlotte, from left, Prince Louis and Britain's Kate, the Princess of Wales, during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's Kate, Princess of Wales, shakes hands with actor Richard E. Grant at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, reacts as she stands with Paloma Faith at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, greets children who are performing at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, stands with Gregory Porter, Olivia Dean and Paloma Faith at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, reacts as she stands next to actor Richard E. Grant at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, stands with Gregory Porter, Olivia Dean and Paloma Faith at Westminster Abbey on the day of the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, walks towards children who are performing at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, stands with Olivia Dean and Paloma Faith at Westminster Abbey on the day of the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, sits with attendees at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Prince Louis and Kate, the Princess of Wales, during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's Prince William, Kate, Princess of Wales, Prince George, left, and Princess Charlotte look at messages at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's Kate, Princess of Wales, reacts at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's William, The Prince of Wales, from left, Prince George, Princess Charlotte, Prince Louis and Kate, the Princess of Wales, during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's William, The Prince of Wales, left, and Prince George during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's Kate, Princess of Wales, sits with attendees at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)

Britain's William, The Prince of Wales, from left, Prince George, Princess Charlotte, Prince Louis and Kate, the Princess of Wales, during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's Prince George and Princess Charlotte during the Together At Christmas carol service at Westminster Abbey, in London, Friday, Dec. 6, 2024. (Aaron Chown/Pool Photo via AP)

Britain's Kate, Princess of Wales, speaks to an attendee at the "Together At Christmas" carol service at Westminster Abbey in London, Britain, Friday, Dec. 6, 2024. (Isabel Infantes/Pool photo via AP)