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Princess Eugenie's royal wedding guests included Demi Moore, Naomi Campbell

The princess invited several of her celebrity friends to her wedding at Windsor Castle.
Princess Eugenie's wedding included several celebrity guests.
Cara Delevingne, Naomi Campbell and Demi Moore at the wedding of Princess Eugenie of York to Jack Brooksbank at St George's Chapel, Windsor Castle, in Windsor, England, on Oct. 12.AFP-Getty Images, EPA
/ Source: TODAY

Princess Eugenie’s wedding was a star-studded affair!

The princess tied the knot at Windsor Castle on Oct. 12, and she invited several celebrities to join in the celebrations, in addition to members of the royal family.

Actress and model Cara Delevingne, a longtime friend of Princess Eugenie, probably turned the most heads with her chic, menswear-inspired look. She wore a suit, top hat and a gray tie, and paired the look with black stilettos.

So dapper!
So dapper!

Demi Moore also made an appearance, sporting a maroon dress and matching fascinator. Moore is apparently a friend of Princess Eugenie’s parents, the Duke and Duchess of York.

Demi Moore
Hollywood royalty! Moore looked stunning in a maroon dress and fascinator.Reuters

Supermodel Naomi Campbell was also on hand to celebrate the princess’s big day. She wore a stunning, black and silver fringed dress with gloves and a statement hat.

Naomi Campbell arrives
The supermodel stepped out in a gorgeous and slightly edgy fringed dress. Getty Images

Kate Moss, another supermodel friend of the royal family, also attended.

Kate Moss sported a fun, polka-dotted dress.
Kate Moss sported a fun, polka-dotted dress.

Robbie Williams also scored an invitation, and his young daughter, Theodora, even served as one of the bridesmaids.

Williams attended with his wife, Ayda Field.
Williams attended with his wife, Ayda Field.

Princess Eugenie also invited singer Ricky Martin to join in the celebrations.

Martin looked dashing as he arrived at the chapel.
Martin looked dashing as he arrived at the chapel.

Meanwhile, actress Liv Tyler arrived at St. George’s chapel in a demure blue suit dress and fascinator.

Liv Tyler
Tyler struck an elegant note in her navy blue suit and fascinator. Getty Images

Singer Ellie Goulding also joined the newlyweds for their special day. Goulding is a longtime friend of the royal family: she sang at the wedding of the Duke and Duchess of Cambridge in 2011, and she has been spotted out and about with Princess Eugenie.

Ellie Goulding
The singer wore a flowing, pale blue dress. Gareth Fuller / AP

Singer James Blunt, who also attended the wedding of Prince Harry and Meghan, Duchess of Sussex, made a repeat appearance at Princess Eugenie’s wedding.

James Blunt
Blunt attended with his wife Sofia Wellesley. EPA

Comedian and actor Stephen Fry, a friend of the royal family, also attended with his husband, Elliott Spencer.

Stephen Fry
The British comedian and writer is a friend of the royal family. Adrian Dennis / WPA Pool via Getty Images

Pippa Middleton also attended along with her sister, Catherine, Duchess of Cambridge. She showed off her growing baby bump as she arrived at Windsor castle in a chic green dress.

James Middleton, Pippa Middleton and James Matthews
Pippa Middleton showed off her baby bump in a flowing, forest green dress.Getty Images

There’s nothing like a royal wedding to bring out such an eclectic, glamorous mix of musicians, models, actors and royals themselves!