With an orange scarf.
She supposedly boosted their sales, which is nice.
It was sparkly.
It was a sapphire outfit by Barbara Tfank.
Plus, L'Officiel Paris's latest cover model.
"I'm sorry, we don't allow pictures."
And she got asked to the Marine Corps Ball by a very dashing Lance Corporal.
Alexa Chung, naturally, is also in this slideshow.
Their appearance at the "Christmas in Washington" concert has sparked a heightened, but misplaced, interest in the way the young sisters dress.
She attended several holiday-related events this weekend.