Alastair Grant, Associated Press
Britain's Queen Elizabeth II waves at the crowds in front of Buckingham Palace for the official celebration of her birthday on Saturday.

There are a lot of perks that come with being queen. Having two birthdays a year is one of them.

Queen Elizabeth II was born in April some 82 years ago, but she celebrated her official birthday Saturday with all the pomp and pageantry her position commands.

She and her husband, Prince Philip, presided over the Trooping the Color ceremony, which drew thousands of well-wishers to the Horse Guards Parade ground near Buckingham Palace.

Prince William and Prince Harry, who have both been active in the military this year, were there in uniform to watch the parade.