Brian's cheeky grin when the music began in the chapel, quickly stole the hearts of millions.
Now, the son of Meghan's best friend Jessica Mulroney has recreated that iconic moment in another happy snap.
Sharing a gorgeous family photo to Instagram, Jessica stands alongside her four-year-old daughter Ivy, and seven-year-old twins Brian and John.
The 38-year-old from Canada couldn’t help but notice her son pulling the same face he made during Meghan’s big day.
'Another day, another jumpsuit,' she wrote, adding, 'That Brian face tho.'
Followers were quick to comment on Brian's adorable grin.
'Yes, that face reminded me too as soon as I swiped up and saw it! Lol! I think everyone can now relate to it, as his cute face is now in history books! Lol! So adorable!', one commenter wrote.
Another added, 'Pure Gold!!! One of my favourite moments from the wedding – priceless.'
'It truly was a magical moment and summed up what anyone and everyone with a heart should have been feeling in that moment. It was the equivalent of a squeal.'
Back in May, after Brian's face went viral, his father Ben took to Instagram shortly after the ceremony to gush about his son becoming well-known around the world.
'Ok, Brian. You’re getting a TV in your room for the summer,' he wrote at the time.