Bow wow!

Michelle Williams wore Azzaro's festive Joyce minidress to the premiere of her latest flick, "Blue Valentine," on Dec. 7 in NYC.

The frock, which she paired with black Charlotte Olympia platform heels, had an embellished bodice and tiered skirt and was accented with a velvet black bow. The waist featured an unexpected cutout that added a bit of edge to her youthful look.

The 30-year-old actress has been sporting a seriously short blond pixie cut since she landed the role of Marilyn Monroe in an upcoming biopic. We adore the way Williams styled her heavy bangs and added massive amounts of mascara for the event.

In related news, learn how to sew your own holiday dress, à la Williams!

And click here for fun holiday frocks under $100.