Michelle Williams Turns 31 Today! A Look Back at Her Style Hits

The lovely (and uber-talented) Michelle Williams turns 31 today. To celebrate, we rounded up her top looks—not an easy task since she always looks polished, yet so youthful. Here she is at the Metropolitan Museum of Art's 2011 Costume Institute Gala: The actress wore custom Miu Miu with Fred Leighton jewelry.

83rd Annual Academy Awards at the Kodak Theatre: Williams wears Chanel Haute Couture with Harry Winston jewelry and Jimmy Choo shoes.

Blue Valentine at MOMA: Looking as good as ever in Valentino.

16th Annual Critics Choice Awards at the Hollywood Palladium. Stunning (again) in Valentino.

78th Annual Academy Awards at the Kodak Theater: Williams, with the late Heather Ledger, wears a gorgeous mustard-colored Vera Wang gown.