This weekend, one of the newest additions to the British royal family, Prince Louis, was christened at St James's Palace in London. He was accompanied by his immediate family for the entire service: Prince William, Duchess Kate, Prince George, and Princess Charlotte - who we now know is surprisingly sassy.
After the ceremony was over, the adorable family were greeted by journalists and photographers as they walked out of the chapel. They were set to head off to a private afternoon tea, exclusively for friends and family of the 11-week-old prince and his parents, and Charlotte made sure that everyone else knew it.
As she passed the group of waiting reporters, she took one look at them and said - rather bluntly - "You're not coming."
You can take a look at the clip below, but be warned: a helicopter is flying overhead when the princess delivers her sick burn, so you may need to turn up the volume a little.
While three-year-old Charlotte was busy being a cheeky toddler, according to the Duchess of Cambridge, the baby prince was apparently "very relaxed and peaceful" throughout the entire ceremony. Even the Archbishop of Canterbury commented on his calmness, to which Kate responded: "I hope he stays like this".
The Queen and the Duke of Edinburgh were not in attendance at the ceremony, albeit not because of Prince Philip's recent ill health. The pair have a busy week coming up, what with the RAF centenary happening today, and a visit from Donald Trump going on later this week.
Speaking of which, maybe Princess Charlotte will extend her sassiness to the US president. I'd love to see how he'd react.