Princess Eugenie
Princess Eugenie's supermodel wedding guests might upstage her. Pictured: Princess Eugenie attends the IWC Schaffhausen Third Annual 'For the Love of Cinema' Gala during the Tribeca Film Festival on April 16, 2015 in New York City. Getty images/Dimitrios Kambouris

Princess Eugenie's wedding guests include a lot of models who might upstage her.

Kate Middleton and Meghan Markle are expected to dress down at the upcoming royal wedding to ensure that they won't steal the limelight from the bride. However, according to Nicholas Bieber, a journalist for Daily Star, a number of supermodels are among the guests and they are set to pull off a showstopper.

Among Princess Eugenie's wedding guests is a trio of jaw-dropping supermodels and head-turners that includes Karlie Kloss, Kate Moss and Naomi Campbell. Moss and the bride's mom, Sarah Ferguson, are close pals. Meanwhile, Campbell is a regular guest to Princess Eugenie and Princess Beatrice's charity events. On the other hand, Kloss is very close to the bride's sister and maid of honor.

Ellie Goulding is also expected to attend the event. Princess Eugenie and Goulding share years of friendship. Cara Delevingne may also join the celebration as she has been seen partying with the royal bride in the London clubs in the past.

Prince Harry's exes Cressida Bonas and Chelsy Davy are also tipped to attend the event. Both are friends with the bride-to-be. They even greeted Princess Eugenie on her birthday and called her "pooch face." Princess Eugenie was also the one who set the Duke of Sussex to her long-time pal Bonas in 2012.

On the other hand, the Duchess of Cambridge and Duchess of Sussex would make sure that they won't steal Princess Eugenie's moment. So, more likely they will dress modestly or even attend with a recycled outfit.

"[Middleton and Markle] would probably wear something that we've seen before. Something that not blends in and doesn't stand out and that goes out for any domestic weddings as well," etiquette expert William Hanson said.

Middleton just attended Sophie Carter and Robert Snuggs' wedding a few weeks ago. For the said event, she arrived wearing her blue Catherine Walker dress that she already used in her previous royal engagements. So, many believe that she would indeed rewear an outfit.

"Kate is known for her demure, ladylike style. Never one to veer towards loud prints or looks that sit on the line of what’s appropriate and what's not, Kate will no doubt be impeccably dressed for Eugenie’s nuptials on the 12th of October, without making too much of a statement and risking detracting from the bride," Madeleine Lee of The Telegraph wrote.