Her mother, Duchess of York Sarah Ferguson, is of course known for her natural red locks so perhaps her daughter wanted to follow in her footsteps for the biggest day of her life.
The royals will soon revisit the memories of their royal wedding as they witness Princess Eugenie and Jack Brooksbank exchange their vows and tie the knot on October 12 at St George's Chapel in Windsor Castle.
Less than five months after the global spotlight descended on Windsor, the historic market town will host another star-studded royal wedding Friday.
Jack admitted he had noticed Eugenie first, with the couple "staring" at each other after being instantly infatuated.
ITV will be showing a 30-minute highlights programme at 8pm, called The Royal Wedding: A Family Celebration.
According to Parker, Eugenie's ring wasn't meant to be a copy of Catherine's ring, which originally belonged to Princess Diana.
The pair went for a final rehearsal at the venue on Thursday, with photographers capturing shots of a smiling Eugenie in her auto.
In a television interview ahead of the wedding, Jack paid tribute to his future wife, calling her a "bright shining light".
He popped the question in June in Napa Valley just weeks after Markle, 37, celebrated her royal wedding to Prince Harry.
Art-loving Eugenie (pronounced YOO-juh-nee, not you-JAY-nee, but she's said she's "used to every pronunciation") is the Queen's granddaughter and is ninth in line to the throne.
Italian singer Andrea Bocelli will perform at the ceremony and so will musicians from the Royal Philharmonic Orchestra.
They will also have a small carriage procession taking them out onto Windsor High Street and 1,200 members of the public have been invited inside the grounds as well as representatives from charities that the couple support. "But there's something different about Friday's royal wedding, and people aren't happy".
But there are some differences from Harry and Meghan's wedding.
Jack proposed to Eugenie, whose mum is Sarah, the Duchess of York, with a padparadscha sapphire ring surrounded by diamonds.