Kate Middleton and Princess Charlotte stunned fans with a surprise piano duet at the Together at Christmas carol service.
The Princess of Wales played alongside her 10-year-old daughter in a special performance.
The duo performed Holm Sound, a piece they enjoy playing together.
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The duet was filmed in the castle’s Inner Hall and aired as the opening segment of the carol show.
Kate shared a voiceover about love, presence, and simple acts of care at Christmas.
The surprise duet became one of the most talked-about scenes in this year’s holiday service.