Stacy Kiebler, Natalie Portman and More - Best Dressed Ladies at the 2012 Oscars

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Stacy+Keibler in 84th Annual Academy Awards - Arrivals

Stacy Kiebler arrives at the 84th Annual Academy Awards held at the Hollywood & Highland Center on February 26, 2012 in Hollywood, California. (Getty Images)more pics »

Actress Natalie Portman arrives at the 84th Annual Academy Awards held at the Hollywood & Highland Center on February 26, 2012 in Hollywood, California. (Getty Images)more pics »

Natalie Portman Oscars Dress 2012 (Getty Images)

Last year's Best Actress winner Natalie Portman continued her long-running streak of perfection in vintage Christian Dior Haute Couture. This strapless crimson gown was featured in the 1954 collection, but it couldn't look any fresher than it does on Natalie.

Stacy Keibler also rocked the red carpet. George Clooney's lady love Stacy Keibler very much resembled a trophy in her expertly draped gold Marchesa gown. With a deep side part and sun-kissed skin, Stacy couldn't have looked any more polished on her boyfriend's big night.

Natalie Portman Pics:

Best & Worst Dressed at the 2012 Oscars

Hollywood's elite brought out their most spectacular dresses for the biggest red carpet night of the year. See who sizzled and who fizzled at the 2012 Oscars. This is the night when the fashion and entertainment worlds meet in a high speed, head-on collision, as stars reveal themselves as style-savvy risk takers or cautious color-avoiders. Hollywood's finest will live with their sartorial choices forever, for better or for worse. Below are a few of our favorites from the 2012 Oscars red carpet. Check out all 50 of our 'Best and Worst' dressed here.