Amanda Holden will join a group of celebrity coaches mentoring a new choir ahead of their performance in front of the King and Queen Consort at the Coronation Concert.
Alongside the Britain's Got Talent judge, the other mentors in the documentary 'Sing For The King: The Search For The Coronation Choir' will be choirmaster Gareth Malone, Strictly Come Dancing judge Oti Mabuse, and actress Rose Ayling-Ellis.
A BBC programme will explore how the 300 singers were brought together from diverse backgrounds to perform at the event at Windsor Castle in May.