Prince George won over the crowds outside Buckingham Palace once again today, as his sister Princess Charlotte made her debut on the palace's balcony during the Trooping the Colour.

The Royal Family gathered to watch a flypast after the ceremony as part of the Queen's official 90th birthday celebrations.

What to Read Next

And once again the future king has worn an outfit that reminds us of one his dad the Duke of Cambridge had as a boy.

Prince George salutepinterest
Danny Martindale//Getty Images

George was wearing a white short sleeved shirt with blue trim and blue shorts, just as his father did at his uncle Prince Harry's christening in 1984.

A rather cheeky Prince William was pictured amusing his family as they posed for an official photo at the event more than 30 years ago.

Prince William at Prince Harry's christeningpinterest
Anwar Hussein Collection//Getty Images

It's not the first time George has taken style tips from his dad.

He was pictured at his sister Princess Charlotte's christening wearing a similar outfit to the one William wore to visit Harry at the hospital where he was born.

Prince William Prince George twinningpinterest
Anwar Hussein/Chris Jackson//Getty Images

As if he didn't look enough like his dad anyway, the lookalike outfits just add to their resemblance.

Events are taking place over the weekend to mark the Queen's official 90th birthday.