The Princess of Wales’ second annual Christmas carol service will air as part of a special program on Christmas Eve. While Together at Christmas: Royal Carols will be broadcast on ITV1, royal fans in the states will be able to watch the event as well. Parade.com can exclusively reveal that Together at Christmas: Royal Carols will be available on BritBox.  The program, narrated by Academy Award winner Catherine Zeta-Jones, will premiere on the streaming service—which offers a free 7-day trial—on Dec. 24 at 5 p.m. ET following the U.K. broadcast.  Together at Christmas: Royal Carols will feature an introduction from the Princess of Wales, who spearheaded the service, in addition to “films highlighting individuals who go above and beyond to support others” and tributes to Queen Elizabeth. The Princess’ second carol service was filmed for broadcast ahead of Christmas Eve. Members of the British royal family came together for the festive occasion held at London’s Westminster Abbey on Dec. 15.  The Prince and Princess of Wales were joined by their eldest son Prince George and daughter Princess Charlotte at the event this month. King Charles III, Queen Consort Camilla; Sophie, Countess of Wessex; Zara and Mike Tindall; Princess Beatrice and Princess Eugenie were among royal family members who stepped out for the service. This year’s carol service was dedicated to Queen Elizabeth, and the values the late monarch “demonstrated throughout her life, including duty, empathy, faith, service, kindness, compassion and support for others,” per Kensington Royal. Following the service on Dec. 15, Prince William and Catherine’s official social media accounts wrote, “Thank you to everyone who has helped make #TogetherAtChristmas so special, it was fantastic to celebrate inspiring individuals and outstanding organisations with you all.” Watch Together at Christmas: Royal Carols on BritBox Dec. 24. Next, check out 26 fairy-tale royal weddings.