Kate, Duchess of Cambridge, performs at a Christmas carol concert at Westminster Abbey in London. Scottish singer Tom Walker praised the piano skills of the Duchess of Cambridge after the pair recorded a Christmas tune shown during a carol concert on Christmas Eve. Walker, 30, performed a new song, “For Those Who Can’t Be Here," accompanied by Kate playing the piano, in a pre-recorded segment shown during the concert broadcast on ITV on Friday. Walker said he had kept the performance a secret, even from his mother. 📸 Alex Bramall, @apnews #duchesskate