Catherine, Princess of Wales, and Princess Charlotte perform piano duet for Christmas carol service

Catherine, Princess of Wales, and her daughter Charlotte played a festive piano duet that aired Wednesday as part of an ...

Princess Charlotte, 10, is adorable in surprise piano duet with mom

Princess Kate's 10-year-old daughter, Princess Charlotte, played the piano at her mother's side in a pre-recorded portion of the televised concert at Westminster Abbey. The royal duo performed "Holm ...