Kate Middelton at Together At Christmas 2021.Photo: Samir Hussein/WireImage

Catherine, Duchess of Cambridge attends the “Together at Christmas” community carol service on December 08, 2021 in London, England.

Kate Middletonis providing some festive cheer for her father-in-law,King Charles III.

The British monarch, 74, and wifeQueen Camilla, 75, will join thePrincess of Walesand husbandPrince WilliamforRoyal Carols: Together At Christmasat Westminster Abbey on Dec. 15.

“This year’s carol service is dedicated to Her MajestyQueen Elizabeth IIand the values Her Majesty demonstrated throughout her life, including duty, empathy, faith, service, kindness, compassion and support for others,” added the release.

William and Kate at Together At Christmas 2021.ui Mok - WPA Pool/Getty

William and Kate

Kate hosted herfirst Christmas concertat Westminster Abbey in 2021 to pay tribute to the work of individuals and organizations across the U.K. who supported their communities during the coronavirus pandemic.

Wearing a red Catherine Walker dress with a festive bow detail and a pair of the Queen’s earrings, she gave her first public performance on the piano during a surprise duet with Scottish singer Tom Walker on the song “For Those Who Can’t Be Here.”

Charles and Camilla did not attend the inaugural event, or any of Kate and William’s three children —Prince George,Princess CharlotteandPrince Louis.

Kate Middleton plays piano at Together At Christmas 2021.Alex Bramall/Kensington Palace via Getty

In this image released December 24, 2021, Catherine, Duchess of Cambridge accompanies singer Tom Walker on the piano during a performance of his song ‘For Those Who Can’t Be Here’ during Royal Carols - Together At Christmas, a Christmas carol concert hosted by the Duchess of Cambridge at Westminster Abbey in London on December 8, which was broadcast on Christmas Eve 2021.

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“Help us decide the final carolfor Together at Christmas,” a message on the Prince and Princess of Wales' Twitter account read.

source: people.com