Granted, it's hard for Ms. Clooney merely to blend in, but her jauntily tilted and perfectly matched wide-brim hat, displaying a dainty veil in front, brought gasps both online and in the crowd that lined the wedding route.
Oprah was one of a slew of stars that arrived in Windsor on Saturday morning.
The Queen's grandson, who is sixth in line to the throne, will pledge to love, comfort, honour and protect the former actress as they become husband and wife in the historic surrounds of St George's Chapel.
"For Oprah, it was flawless", she stated.
The talk show icon is sporting a long-sleeved blush dress with lace detailing along the bustline and at the hem, which she paired with a wide-brimmed hat that featured fluffy detailing and a pale pink flower.
Actor George Clooney and his barrister wife Amal were also among the arrivals, as were football hero David Beckham and his wife Victoria.
WINDSOR, England Thousands of well-plumed guests and enthusiastic royal fans streamed into Windsor on Saturday, all seeking to capture their piece of the British extravaganza that is the royal wedding of Prince Harry and Meghan Markle.
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On Friday morning, the hospital confirmed that Mr Skripal had left the hospital, following his daughter's discharge on April 10. But the Russian government denied any involvement and has accused the United Kingdom of inventing a "fake story".
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English Premier League match report
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Oprah's longtime partner, Stedman Graham, said he could have joined her, but was happier giving a commencement address inside a gymnasium in Baltimore, where his advice to graduates just might extend to a certain American across the pond: Don't be concerned with how others define you, he said: "The only thing that matters is how you define yourselves".
The couple also honored the memory of Harry's mother Diana, whose older sister Jane Fellowes gave a reading during the wedding service.
The media mogul made her way to St. George's Chapel at Windsor Castle in a lavender dress and hat.
Sir Elton John is there, and has also been confirmed to perform. The Middleton family, Fergie [Sarah, Duchess of York] and Prince Harry's ex-girlfriends Chelsy Davy and Cressida Bonas are also among the crowd.
Markle will be accompanied by her mother, Doria Ragland, when she is driven to the chapel, and many of her closest friends and some co-stars from "Suits" will be in the audience.
Joss Stone was also on hand, prompting BBC commenters to note that the singer, often barefoot on stage, wore shoes.
Earl Charles Spencer, who spoke memorably at Diana's funeral on behalf of his family, was seen entering the church.