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 Sound" by Erland Cooper during "Royal Carols: Together at Christmas."

Just hours after Kate Middleton and Princess Charlotte's surprise piano duet aired, the mom and daughter joined the royal family on Christmas as they headed to church.

RadarOnline. com can reveal Catherine, Princess of Wales is said to have turned her family's Christmas card into what royal analysts describe as a pointed lesson in authenticity – a carefully judged image some believe is aimed squarely at Meghan Markle across the Atlantic.

THIS is the hilarious moment The Princess of Wales teasingly scolds a royal well wisher for eating “too many mince pies” after an embarrassing chair mishap on Christmas Day. A beaming

Princess Catherine once declined Queen Elizabeth's historic Christmas invitation to Sandringham in 2006, telling Prince William she would only attend when she had an engagement ring on her finger

While Catherine’s custom design likely costs thousands, the closest off-the-peg version from the Italian label retails at £1,475. For those hoping to channel the same refined aesthetic for less, a high-street alternative at Nobody’s Child offers a stylish solution.

Catherine went against a royal tradition to give the late Queen a heartfelt gift during their first Christmas together

The Princess of Wales is in full interior design mode as she begins redecorating the inside of her family’s new “forever home.”