Emily Blunt's stunning black beaded Jenny Packham gown wasn't the only thing that turned heads at the LACMA Art + Film Gala in Los Angeles on Saturday night.

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The 28-year-old actress debuted a shorter, straighter hair style and strikingly darker color while posing for pics with her husband John Krasinski.

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Blunt, who dyed her hair blonde back in February for a movie role, was recently named the new face of Yves Saint Laurent's classic Opium fragrance.

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In the campaign photo, shot by Patrick Demarchelier, the British star shows off her sexy side, donning a plunging black dress, while giving the camera a sultry look.

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Watercooler Poll

What's Emily Blunt best hair look?

Wavy and light brown
Pin-straight and dark brown