We already knew the royal wedding was going to be the event of the year, and all the A-listers who have arrived at Prince Harry and Meghan Markle’s nuptials are proof-positive.

On Saturday, guests started arriving as early as 9:30 a.m. GMT (4:30 a.m. EST, 1:30 a.m. PST) at St. George’s Chapel at Windsor Castle in anticipation of the big day. The biggest stars to arrive included George and Amal Clooney, Priyanka Chopra, Elton John, and Serena Williams.

Naturally, Markle’s Canadian BFF Jessica Mulroney also attended with her husband, etalk host Ben Mulroney. The Toronto-based stylist arrived in London on Wednesday, accompanied by her children — twins Brian and John, and daughter Ivy — who are part of the royal wedding party.

Fellow Canuck Patrick J. Adams, who played Markle’s TV husband on “Suits,” was also in attendance, as were the bride’s other co-stars, including Gabriel Macht, Sarah Rafferty, Gina Torres and Rick Hoffman.

Of course, plenty Royal Family members made an appearance, such as the Duke and Duchess of York and the late Princess Diana’s siblings: Sarah, Jane, and Charles Spencer.

Scroll down to see all the other famous faces who attended Harry and Markle’s nuptials!

• Amal & George Clooney

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• Oprah Winfrey

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• Victoria & David Beckham

  CHRIS RADBURN via Getty Images

• Abigail Spencer & Priyanka Chopra

  Chris Jackson via Getty Images

• Cressida Bonas

  WPA Pool via Getty Images
  The U.K. actress is one of Prince Harry’s ex-girlfriend.

• Idris Elba & Sabrina Dhowre

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• Pippa Middleton & James Matthews

  Chris Jackson via Getty Images

• Gina Torres

  WPA Pool via Getty Images

• James Blunt & Sofia Wellesley

  WPA Pool via Getty Images

• Serena Williams & Alexis Ohanian

  WPA Pool via Getty Images

• Charles & Karen Spencer

  CHRIS JACKSON via Getty Images
  The 9th Earl Spencer is the brother of the late Princess Diana.

• Patrick J. Adams & Troian Bellisario

  IAN WEST via Getty Images

• Gabriel Macht & Jacinda Barrett

  WPA Pool via Getty Images

• Sarah Rafferty

  IAN WEST via Getty Images

• James Haskell & Chloe Madeley

  IAN WEST via Getty Images

  Haskell is an English rugby union player.

• Lady Kitty Spencer

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• Joss Stone

  CHRIS RADBURN via Getty Images

• Carole & Michael Middleton

  WPA Pool via Getty Images

• Alexi & Giada Lubomirski

  CHRIS JACKSON via Getty Images
  Alexi Lubomirski is the royal wedding photographer.

• Marcus Mumford & Carey Mulligan

  WPA Pool via Getty Images

• James Corden & Julia Carey

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• Jonny Wilkinson & Shelley Jenkins

  IAN WEST via Getty Images
  Wilkinson is a former British rugby player.

• John & Norma Major

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  John Major is a former British prime minister.