Presenters Ant and Dec will host The Queen's 90th Birthday Celebration at Windsor Castle which is to be broadcast live on ITV later this year.
The national event, hosted by Royal Windsor Horse Show in the presence of The Queen, will see a host of British stars join the celebration.
It will tell the story of The Queen’s remarkable life from her birth in 1926, through World War Two, to her Coronation in 1953 and a reign spanning more than 60 years.
The event is set to feature more than 900 horses and 1500 participants including performances by The Oman Royal Cavalry, Chilean Huasos, The New Zealand Army Band, The Royal Canadian Mounted Police, Azerbaijan Cossack Riders, State Carriages from The Royal Mews, 100 Military and Commonwealth Pipers and The Household Cavalry Mounted Regiment.
A two-hour programme on the monarch's life and reign, with a working title of The Queen At Ninety, is also scheduled to be broadcast this spring.
Producers Oxford Film and Television have been granted close access to the work of Her Majesty and other members of the Royal Family across the United Kingdom and overseas during the last year.
It will include contributions from Their Royal Highnesses The Prince of Wales and The Duchess of Cornwall and The Duke and Duchess of Cambridge.