Yesterday, Queen Elizabeth II's Platinum Jubilee weekend kicked off with the annual Trooping the Colour ceremony (AKA her birthday #2), where the royal family gathered together on the Buckingham Palace balcony to wave to the crowds and watch the festivities, and where Prince Louis, 4, stole the show with his meme-worthy facial expressions during a special flypast by the Royal Air Force. But while we're still giggling at the young prince's comical faces, it seems that a new royal is grabbing our attention today with his expressions: Prince Harry.

Early this morning, the Service of Thanksgiving took place at St. Paul's Cathedral, a church service that is meant to express “thankfulness for The Queen’s reign, faith and service; desire to foster unity and peace amongst all peoples; and commitment to care for God’s creation,” according to the church's website.

At the service, the Duke of Sussex looked quite gleeful as he made many eye-catching faces.

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Phil Noble/WPA Pool/Getty Images

In the photo above, Prince Harry is seen with his mouth agape as if he's about to burst into laughter, and he looks over at those seated to his right, which includes his cousins, Princess Eugenie and Princess Beatrice, as well as their husbands, Jack Brooksbank and Edoardo Mapelli Mozzi.

Below, we can see the duke smiling once again and his neighbor, Brooksbank, appears to be cracking up at something.

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Aaron Chown/PA Images/Getty Images

Then, the duke looked just as jovial outside while he and his wife, Meghan Markle, talked with another one of his cousins, Zara Tindall.

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TOBY MELVILLE/POOL/Getty Images

Of course, we couldn't forget to include this Prince Harry pensive moment either.

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Victoria Jones/WPA Pool/Getty Images

We can't wait to see which royal steals the show next.

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RELATED: Prince George Looks So Grown Up (and So Much Like Dad William) at Trooping the Colour

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