Kate Middleton and Princess Charlotte made a surprise appearance playing a duet during the annual "Together at Christmas" ...

Princess Charlotte, 10, and mom Kate Middleton performed a special, one-handed Christmas Eve piano duet that shows how ...

Kate Middleton and Princess Charlotte shared a heartwarming piano duet at the "Together at Christmas" carol service, playing ...

A “special” piano duet by Princess Kate and her 10-year-old daughter Princess Charlotte at a Christmas carol service has delighted fans of the British royalty on social media, who said the performance ...

Catherine, Princess of Wales, and her daughter Charlotte played a festive piano duet that aired Wednesday as part of an annual Christmas service celebrating “love in all its forms,” according to ...