Even that dress can't eclipse her full moon!
We love that her first thought when seeing the revealing pic was to post it on Instagram -- HA!
Ch-ch-check out Kate's butt in all its glory (below)!!!
[Image via Kate Upton/Instagram.]
Oh, hey there, we weren't expecting you!
Like some other guests, the French actress eschewed the ball gown theme and wore a beautiful navy Dior cocktail dress with circle cut-outs throughout and a plunging neckline.
Her hair won the award for "most dramatic" thanks to those thick, wavy bangs that looked sculpted onto her forehead!
Chopard jewels and silver court shoes rounded out the outfit.
We're feeling it! How ’bout U???
[Image via Getty Images.]