The little Cambridge kids are clapping along to support nurses, pharmacists, doctors and more in a newly-released video.
The Duchess of Cambridge also admitted to feeling a healthy dose of mom guilt.
It's only the second such photo.
But other family members, like Prince Philip and Prince Harry, were not in attendance.
Prince Harry took on a really festive disguise.
Lara Spencer has since apologized for her "stupid" and "insensitive" comments.
He was cheering on his parents in a race, but he won at life.
There's a reason George has to do it, but Charlotte doesn't.
The wee prince is six, and kind of a badass.
Their nephew turned six on Monday.