Prince Charles and the Duchess of Cornwall are due to perform in the UK for the first time in their new royal family, the Duke and Duchess of Sussex.
The Duke and Princess Anne, who are the first of two children of Charles, will sing songs from their own catalogues to mark the occasion, including the classic song “When I’m Loved”.
The Duke of Sussex, meanwhile, will also sing from her catalogues for the occasion.
“We’re doing it to celebrate the life of the Queen and the life and legacy of the British monarchy,” Prince Charles said.
“The song we are going to be doing is ‘My Name Is Prince Charles’ and we’re going to sing from it.
It’s a very special moment.”
The Queen will be joined in the performance by the Duke of York, Duke of Edinburgh, Prince Harry, Prince George and Prince Charles’s cousin, Princess Beatrice.
The royal family will also attend a private dinner with members of the royal family on Wednesday evening.
The Queen is scheduled to perform her first concert of the year in front of 1,500 guests at Windsor Castle on November 12.
The Duchess of Cambridge is also due to tour with the Duke, the Prince of Wales, and Princess Charlotte.
The performance comes after the Duke gave a televised interview in which he called the royals “beautiful, brave and strong”.
“We all want to live in a world where all people are valued equally, but there is no such thing as an ideal society,” the Duke said.