The international human rights lawyer, who attended the nuptials at Windsor Castle with her husband, actor George Clooney, wowed in a canary yellow Stella McCartney dress with a matching hat.
She accessorized with teardrop earrings, a gold clutch and gold closed-toe heels (open-toe shoes are a no-no at royal weddings).
People also loved Oprah’s blush pink Stella McCartney dress:
And Serena Williams’ Versace look:
Check out more outfits below from famous faces you might recognize:
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