As Prince Harry and Meghan Markle left St George's Chapel they were met by an estimated 100,000 screaming fans, but amongst the crowd one face caught the eye of the beautiful bride.
As Markle rode away on her horse-drawn carriage, she did a double take as she spotted her former drama teacher, 77-year-old Gigi Perreau.
"Oh my God," the Duchess of Sussex apparently shouts as she recognises her former teacher.
Meghan's reaction was caught by Prince Harry who also turned around to look at Gigi as they rode past.
An onlooker who took the footage then pans to Gigi who bursts out with excitement after her former student and she locked eyes.
The American teacher taught Meghan at Immaculate Heart High School.
Meghan may even have Perreau to thank for her successful career, as her training landed the actress on the TV show Suits.
American-born Perreau was a child actress who first appeared in Madam Curie at the 2 and starred in many roles throughout the 1940s, 1950s and 1960s.
She moved on to find success in The Donna Reed Show and The Betty Hutton Show as an adult.
Her work garnered her a star on the Hollywood Walk of Fame.