The Princess of Wales is hosting her annual Christmas carol concert at Westminster Abbey, with guests including dignitaries, stars, and everyday helpers who have supported their local areas.
The large audience will hear a selection of carols, music and readings from performers including Kate Winslet and Chiwetel Ejiofor.
The central message of the service, held in the candle-lit Abbey on the afternoon, is generosity and expressing affection towards one's neighbour.
Among the guests will be Jonathan and Anna Cordiner, whose daughter died of a tumour, and who set up a charity, Kayleigh's Wee Stars, to aid parents with a terminally ill child.
"The time, care and compassion you give, often without fanfare or recognition, and without any expectation or recognition, make an extraordinary difference to the circumstances of individuals," the Princess expressed in a note prior to the concert.
The royal has been undertaking her own gradual return to public life following her health challenges and treatment, recently giving her first public speech for two years, in which she talked about recognising the "discreet, frequently unseen labour of caregivers".
Attendees entering the Abbey will be entertained by talented youth performers backed by the charitable trust Future Talent, set up with the help of the Duchess of Kent to increase availability of musical tuition.
Carys Wood, aged 18, who plays the trumpet and is from Wales, has been supported by the organisation, with grants helping towards instruments, tuition, and transportation expenses - and she said it was "amazing" to be taking part in the concert.
"Pursuing music is often costly," she stated. She is now enrolled at the prestigious music academy, and added that "each individual ought to be given the possibility" to hone their artistic talents.
Carys's 11-year-old sister, Eliza, who plays the euphonium, will be present at the Abbey. "I never imagined I would perform in front of so many important people," she said.
Attending the service will be individuals spanning multiple eras.
That will encompass nine-year-old Saphia Turner, honouree of a young hero award, who produces drawings and undertakes charity feats to collect donations for community pantries.
The Abbey has been festooned with handcrafted festive wreaths, with well-known chef Mary Berry and flower expert Simon Lycett assisting in their creation.
Taking to the stage will be Katie Melua, the Westminster Abbey choristers and a maritime folk band from Cornwall, the group Fisherman's Friends, who said the invitation to sing was "the perfect culmination."
The Together at Christmas carol concert will be aired by a major network on Christmas Eve.
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