The Prince and Princess of Wales were met by an outburst of excitement from royal fans as they stepped out onto the Buckingham Palace balcony with their three children Prince George, Princess Charlotte and Prince Louis on Saturday.
The royals were out in full force for Trooping the Colour, the annual event held to commemorate the monarch's official birthday. Looking immaculate in formal dress, the Wales family were a vision of unity as they charmed the crowd on the balcony - and royal fans think they have spotted something unusual about Prince George's jacket.
The nine-year-old royal looked like his father's mini-me as he donned a tailored navy jacket embellished with double-breasted golden buttons. Twinning with his younger brother Prince Louis, the future king also wore a red tie and crisp white shirt beneath his suave blazer.
Royal fans were quick to comment on Prince George's blazer, which many believed could have been a hand-me-down from his father's childhood wardrobe.
Taking to Twitter, one fan penned: "I wondered if Prince George was wearing his father's navy blazer (worn by William in early/mid 1990s?) Looks the same style... I might be wrong."
"Prince George is already rocking the classic navy blazer look just like his stylish dad! He's definitely following in his father's fashionable footsteps," added another fan.
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Unearthed photographs from Prince William's childhood suggest that Prince George's blazer may actually be a new design, but it wouldn't be a surprise if the royal tot had been dressed in his father's pre-loved clothes.
At last year's Trooping the Colour, five-year-old Prince Louis looked so sweet in a crisp white sailor's suit, complete with navy trim and nautical navy neckerchief, fastened in a smart knot.
Twitter fans believe that the Prince and Princess of Wales' youngest child was actually wearing his father, Prince William's, sailor's outfit that he wore to Trooping the Colour in 1985.
Prince William would have only been three years old at the time, so it does seem likely his son would fit perfectly into his former suit.