The stars usually save their best threads for the biggest awards show of the year—The Academy Awards. See which women stood out in the Oscar 2010 red carpet.

Spring is coming! Rachel McAdams’ pastel-patterned Elie Saab Haute couture gown took the attention away from the dark, monochrome hues of the lingering Winter season.

The 40-year-old singer/actress still has her famous curves. J.Lo flaunted them in this Armani Privé gown with a dramatic train, Ferragamo pumps, and Cartier diamonds.

I’m not usually a fan of celebs who wear black in the red carpet, because it’s such a safe, cliché choice, but Carey Mulligan made me do a 360 with her black Swarovski-encrusted Prada.

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It’s great to see actresses stay away from solid-hued dresses for change. Maggie Gyllenhaal, who was nominated for Best Supporting Actress, wore a brushstroke-print Dries Van Noten gown accessorized with vintage Fred Leighton jewels.

Cameron Diaz opted for old Hollywood glamour in this Oscar de la Renta gown matched with Cartier jewels.

Presenter Kristen Stewart surprised red carpet critics with her feminine custom-made dress. This Monique Lhuillier navy trumpet gown was a refreshing change from Kristen’s usually boyish/rocker outfits.

Ruffled would be an understatement for Vera Formiga’s choice of gown. The Best Supporting Actress nominee’s Marchesa gown stood out from the crowd.

Diane Kruger was Chanel’s muse that night. Her ruffled Chanel Haute Couture Collection gown accessorized with Chanel jewelry gave her look a vintage vibe.

I loved Best Supporting Actress nominee Anna Kendrick’s flow-y Elie Saabe Couture gown. She accessorized well with her Judith Leiber clutch and Kwiat diamonds.

Elizabeth Banks’ glamorous gown was no gray area. Her sparkling Fred Leighton jewelry looked great with her ruffled Versace number.

Demi Moore’s fashion choices are usually hit-or-miss. What a relief to see that this night was a hit. Her Atelier Versace gown flaunted her fab figure.