The event will be broadcast as part of the programme Royal Carols: Together At Christmas, screened on ITV1 and ITVX on Christmas Eve.

The Princess of Wales has penned a heartfelt Christmas message about 'love in our darkest times' in a touching nod to her battle with cancer ahead of her annual carol service.

The Princess of Wales writes of the need for mutual support ahead of her carol concert next week.

Kate has written a letter for the 1,600 Westminster Abbey carol goers, including members of the royal family, telling them "Love is the light that can shine bright, even in our darkest times".

The annual service comes as the princess returns to public duties after being treated for cancer earlier this year

Prince Louis was pictured playing a very cheeky stunt at the Princess of Wales 's Christmas carol concert last year. The young royal, who was five at the time, was spotted alongside his two older siblings supporting their mum at the annual festive event.

The Princess of Wales has written a poignant letter to guests attending her fourth carol service amid her own cancer recovery

Lady Frederick Windsor—a.k.a. actress Sophie Winkleman—is married to King Charles's cousin, Lord Frederick "Freddie" Windsor, and during a different Christmas carol concert earlier this week, she revealed a tidbit about Kate's cherished event that has never been mentioned before.

Kate Middleton, who is set to host her much-anticipated Christmas Carol concert, penned a heartfelt letter for few special individuals to express her gratitude.Kensington Palace on Saturday issued

Love is the light that can shine bright, even in our darkest times. We all have something we can offer one another,” the beloved royal wrote.

The Princess of Wales has delivered her first Christmas message in the form of a letter ahead of her annual carol service.