The best part is watching everyone else around them try not to laugh.

Six-year-old Maisie Gregory may not have liked it at the time, but this moment is going to be iconic and really give her a great story to tell for the rest of her life. Getting smacked in the face by a soldier after meeting the Queen is something that will trump most anecdotes, and having it caught on video for everyone to see is just the cherry on top.

Here's another angle of Maisie's big moment, in case you needed clarity.

Via ITN