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

Catherine, the 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 Kensington Palace.

​ Catherine, the 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 Kensington Palace. Read More Breaking News, Latest News and Videos | CNN