Crowds Gather for Royal Wedding

Royal fans gather outside Windsor Castle ahead of wedding of Britain's Prince Harry to Meghan Markle in Windsor, Britain, May 19, 2018.

Amal Clooney and George Clooney arrive at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry, May 19, 2018.

Sarah Ferguson arrives for the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, near London, England, May 19, 2018.

David and Victoria Beckham arrive to the wedding of Britain's Prince Harry to Meghan Markle in Windsor, Britain, May 19, 2018.

Serena Williams arrives with her husband, Alexis Ohanian, for the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, near London, England, May 19, 2018.

A general view of St George's Chapel, Windsor Castle ahead of the wedding of Prince Harry to Meghan Markle at St. George's Chapel, Windsor Castle, May 19, 2018, in Windsor, England.

Pippa Middleton, left, and her husband James Matthews, right, arrive for the wedding ceremony of Britain's Prince Harry, Duke of Sussex and U.S. actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, May 19, 2018.

Bollywood actress Priyanka Chopra, 2nd left, arrives with other guests to the wedding of Prince Harry and Meghan Markle in Windsor, Britain, May 19, 2018.

Idris Elba and Sabrina Dhowre arrive at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry in Windsor, Britain, May 19, 2018.

Royal fans gather outside Windsor Castle ahead of wedding of Britain's Prince Harry to Meghan Markle in Windsor, Britain, May 19, 2018.

Bags with the wedding monogram of Britain's Prince Harry and Meghan Markle are seen ahead of their wedding in Windsor, Britain, May 19, 2018.

A fan waits for the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, near London, May 19, 2018.

A woman poses for a picture ahead of the wedding of Britain’s Prince Harry to Meghan Markle in Windsor, Britain, May 19, 2018.

Armed police officers patrol ahead of the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, near London, May 19, 2018.