Thousands of people flocked to Buckingham Palace to pay tribute to the Queen on her 80th birthday.
Troops in full parade uniform braved sweltering temperatures on a hot summer's day.
Soldiers lined The Mall leading to Buckingham Palace to await the Queen on Saturday morning.
The Duke of York and Prince Harry were among Royals marking the event.
Princesses Beatrice and Eugenie, daughters of the Duke of York, also took part in the ceremony.
The Queen and husband Prince Phillip reviewed the troops on parade.
A 49-plane flypast featured the Hawks of the Red Arrows and a Canberra bomber.
The Queen clapped as the fleet of aircraft - modern jets and vintage warplanes - roared over central London.
The Queen's birthday is on 21 April, but is officially celebrated in June.
Troops fired their rifles as a salute to the Queen as the Royal Family looked on from the balcony.
A Cavalry horse broke with the strict discipline of the parade, kicking a soldier during the event.