The six-year-old had the important task of keeping the surprise a secret for nearly two weeks, which tested his patience. The surprise was a special performance by a soloist from the Royal Ballet, arranged to delight his younger sister, Princess Charlotte, who loves ballet. The festive concert took place at Westminster Abbey, bringing together the Royal Family and distinguished guests for a joyous celebration. Speaking to singer Paloma Faith at the event, Catherine explained how she trusted Louie to keep the secret.

She asked the boy if he could keep it a secret so it would be a surprise for Charlotte. Surprisingly, Louie succeeded in keeping it a secret for nearly two weeks. Catherine revealed this proudly, while Paloma found it amusing that such a task could be challenging for a six-year-old. Catherine giggled as she acknowledged how difficult it was for Lou, who was known for his mischievousness. Despite her best efforts, Louie almost revealed the surprise just before the concert.

Catherine shared a funny moment that morning when Louie's excitement almost spilled over. He asked her if he could tell Charlotte, saying he was "going crazy". Catherine smiled as she recalled how he had almost shared the news during the school holidays. Louie's determination paid off, as Charlotte's delighted reaction showed that the secret had been kept. The eight-year-old looked delighted at the Royal Ballet performance, her passion for dance evident as she watched intently.

This touching moment highlighted the thoughtfulness of Catherine's planning and her understanding of children's interests. Throughout the Christmas service, the warmth of Wales shone through as they enjoyed traditional Christmas carols, held Now in its fourth year, Christmas has become a beloved royal tradition hosted by Catherine, demonstrating her commitment and celebration of the holidays.

William and other family members were also present, along with notable guests at the beautifully decorated ceremony. Prince Louie’s playful nature often charms the public, his ability to maintain such a seriousness shows his growing maturity. Catherine’s playful story of Louie’s experience made her proud and the joy she found in their family tradition. When the Royal Ballet soloist performed and Charlotte’s delighted reaction lit up her face, it was clear that Louie’s efforts were worth it. His sweet determination to deliver.