It's the Queen's Jubilee weekend, celebrating 70 years of the reigning British monarch.
And while hundreds piled into St Paul's Cathedral in London today (3 June) to celebrate Liz's impressive tenure on the throne, people watching back at home all had one question.
Why the hell was Big Suze there?
The iconic Peep Show character is known for being pretty posh, but the Royal Family is another level.
Sophie Winkleman, who plays Suze in the series, was one of the guests invited to the set-piece service, wearing a sharp pink outfit for the special occasion.
And her appearance absolutely baffled people watching on.
Sharing a pic of the actor to Twitter, one user asked: "Sorry why is Big Suze from Peep Show at the Jubilee service?"
Another confused onlooker chipped in: "Big Suze off #PeepShow did pretty well for herself."
"It freaks me out that Peep Show’s Big Suze is a member of the royal family but at the same time it’s not THAT surprising," put a third.
While another added: "It continues to boggle my brain that Big Suze is married to a Royal."
Well, if you're as confused as the rest, there's actually a very simple reason why Suze was invited to the event.
The first thing to say is that she is actually Lady Frederick Windsor.
The 41-year-old is married to Prince Frederick Windsor, who is a British financial analyst, and the only son of Prince and Princess Michael of Kent.
And on top of that, he is currently 53rd in line to the throne, so he's a pretty big deal.
Speaking about the Royals, Suze once said: "I can only speak from personal experience, but when I first went to Buckingham Palace to meet the Queen for the Christmas lunch, she was incredibly welcoming and kind.
"I've only had positive, caring, warmth from all of them."
But it's not just Joe Public who was surprised to learn of her regal connections, the actor said she kept it a secret from Hollywood producers.
Back in 2011, she starred in Two and a Half Men, alongside Ashton Kutcher.
She explained how she kept her identity a secret the whole time.
Speaking to Insider, she said: "People in my business in America didn't know anything about it, because they'd just see 'Sophie Winkleman' on the sheet and I'd go and do the audition and then get the job or not.
"And they didn't find anything out about me. They just knew me from my acting, which was quite important to me."
So there you have it, mystery solved.Featured Image Credit: Alamy/Channel 4