Catherine, Princess of Wales, is presiding over her yearly festive musical service at Westminster Abbey, with guests including royals, celebrities and local heroes who have made a difference in their neighbourhoods.
The large audience will hear a selection of festive songs, musical performances, and spoken word pieces from stars like Kate Winslet and Chiwetel Ejiofor.
The focus of the concert, held in the glowing Westminster Abbey on Friday, is compassion and demonstrating care for others.
Among the guests will be Jonathan and Anna Cordiner, whose daughter died of a brain cancer, and who set up a charity, Kayleigh's Wee Stars, to help households where there is a child with a terminal illness.
"The time, care and compassion you give, often without fanfare or recognition, and without any thought of thanks or praise, make an profound impact to the well-being of people," the Princess expressed in a message before the carol service.
The Princess of Wales is continuing her own gradual return to the public eye subsequent to her illness and medical care, in November making her first public speech for two years, in which she reflected on recognising the "quiet, often invisible work of caring".
Those coming to the Abbey can listen to young musicians backed by the charitable trust Future Talent, set up with the help of the former royal to broaden opportunities for instrumental training.
An 18-year-old named Carys Wood, who is a trumpet player and is from Wales, has been helped by the charity, with funding assisting with instruments, tuition, and transportation expenses - and she said it was "incredible" to be performing at the evening's event.
"Pursuing music is often costly," Carys said. She is now enrolled at the prestigious music academy, and added that "all people deserve the chance" to cultivate their performance abilities.
Eliza, Carys's sister who is 11, who plays the euphonium, will also be at the Abbey. "I never imagined I would perform in front of so many important people," she said.
Within the audience will be individuals spanning multiple eras.
That will encompass young Saphia Turner, nine, winner of a young hero award, who creates and sells art and completes fundraising tasks to raise money for community pantries.
The Abbey has been adorned with handcrafted festive wreaths, with well-known chef Mary Berry and flower expert Simon Lycett contributing to their design.
The musical lineup includes recording artist Katie Melua, the Abbey's own choir and a Cornish sea shanty group, Fisherman's Friends, who said the chance to take part was "a dream come true."
The festive event titled 'Together at Christmas' will be televised and shown on a major network on Christmas Eve.
Elena es una escritora apasionada por la psicologĆa y los sueƱos, con experiencia en blogging y anĆ”lisis de temas existenciales.