ALL eyes were on Prince Louis this afternoon, as the one-year-old royal made his debut engagement at the Trooping the Colour ceremony.
But eagle-eyed royal fans might have noticed that the young prince made an adorable fashion choice, too - he borrowed Uncle Harry's shirt, worn by the royal 33 years ago.
Mum Kate Middleton is known for recycling outfits and today, she and Prince William dressed their youngest son in an outfit from the royal archives.
Louis appeared to be wearing the same smocked, blue and white shirt that Harry, 34, wore on the Buckingham Palace balcony 30 years earlier.
And royal fans couldn't get enough of the cute gesture, with several taking to Twitter to gush about the top.
One wrote: "Apparently Prince Louis wore what Harry wore when he was young. I love that royals keep their childhood outfits with them forever."
Others called it cute, while another asked: "How big is the palace closet?!"
It's not the first time Kate and Will have revisited an old look.
At Prince George's Trooping the Colour debut, the royal tot wore a light blue shorts suit that was almost identical to dad Prince William's first Trooping the Colour ensemble.
Meanwhile, Princess Charlotte looked adorable in a blue floral dress complete with cute Peter Pan collar and Prince George wore a £45 white and blue shirt from Amaia Kids.
The grand event is held in honour of the Queen’s official birthday and ends with the royals watching the RAF fly-past from the balcony of Buckingham Palace.
Prince Louis was seen peering at the crowds that had gathered outside the royal residence with his brother and sister, before making his public debut.
Proud parents Prince William, 36, and Kate Middleton, 37, held their son as the historic planes flew overheard, and Prince Louis clapped as the national anthem was played.
Prince Harry and Meghan were also in attendance, with the Duchess of Sussex making her first public appearance since welcoming baby Archie just over a month ago.
The 37-year-old wowed onlookers in a navy blue ensemble designed by Clare Waight Keller, the mind behind Meghan's Givenchy wedding gown last year, with the hat created by Noel Stewart.
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In other royal news, we told you how Melania Trump channelled style icon Meghan Markle to be the real winner of the UK tour.
We also revealed Meghan's former pal, Lizzie Cundy, claims the Duchess has pushed Prince Harry’s friends out and rules the roost at Frogmore Cottage.
And we showed you Meghan Markle flaunts flashy THIRD ring at Trooping the Colour.