Oprah Winfrey was seen arriving at the royal wedding with British actor Idris Elba and his fiancée Sabrina Dhowre, but Oprah's longtime boyfriend Stedman Graham did not appear to be with them. Oprah did not attend the 2011 royal wedding of Prince William and Kate Middleton, and the OWN boss had kept her invite to Harry and Meghan's wedding a secret up until the last minute.
Pippa Middleton and her husband James Matthews arrive for the wedding ceremony of Britain's Prince Harry, Duke of Sussex and United States actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, Britain.
Among those who arrived early at the castle grounds were American media mogul Oprah Winfrey and English singer James Blunt.
Elton John, who made a beeline for the Beckhams on arrival at the chapel, was twinning with James Blunt in a navy tailcoat, grey waistcoat and powder blue tie.
Harry too will be thinking of his late mother Diana, Princess of Wales, who died in auto crash when he was 12.
The royal wedding of Prince Harry and Meghan Markle has begun, bringing with it pomp and circumstance, including a parade of our favorite celebrities from both sides of the pond.
Tennis player Serena Williams has arrived after hinting on Twitter and Instagram that she was attending a "friend's" wedding. She was seen at Heathrow Airport the night before the royal wedding, which suggested she was likely on the guest list.
Actress Priyanka Chopra and actor Tom Hardy were also there.
The couple also honored the memory of Harry's mother Diana, whose older sister Jane Fellowes gave a reading during the wedding service.
And actress Mulligan and husband, Mumford & Sons star Marcus Mumford, were also there, as well as singer Joss Stone.
"An American in the royal family, isn't that so exciting?" she said.
The royals didn't disappoint, either, led by Queen Elizabeth II in a lime silk tweed coat and Angela Kelly hat with handmade lace crystals and pearls by Lucy Price.
The Duchess of Cambridge arrived with the bridal party wearing a hat designed by Philip Treacy and shoes by Jimmy Choo.
Carol Middleton and Michael Francis Middleton arrive at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry.
Earl Charles Spencer, who spoke memorably at Diana's funeral on behalf of his family, was seen entering the church.