The Queen and the Duke of Edinburgh have arrived for her 90th birthday celebrations in the grounds of Windsor Castle.
They were greeted by Prince Charles before taking their seats for the show.
The two-hour live spectacular featured majestic displays of famous horse troupes from around the world.
The Queen's final star-studded birthday celebrations will kick off with an evening of entertainment chronicling the events of her life.
A colour archive image shows a young Princess Elizabeth with her sister and their father, George VI.