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11/03/2012 at 12:00 PM ET

jessica alba 300x400 This Week’s Best Dressed Star: Jessica Alba
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She holds the unofficial record for most pairs of colored jeans owned by a celebrity, but Jessica Alba can also put together a killer black-and-white look.

The actress earned the number-one spot on our best dressed list this week, thanks to her floral appliqué knee-length Oscar de la Renta number worn with bow-adorned satin Christian Louboutins at a Windows Phone 8 event in San Francisco on Thursday.

PHOTOS: SEE THE OTHER CELEBS WHO MADE THE TOP 10 MOST-LOVED LOOKS LIST!

Hot on her very stylish heels was Nikki Reed in a flowy black Skaist-Taylor mini, lace-up sandals and loose waves at a Twilight photocall in London.

See which other celebs made the top 10 and vote on your favorite looks here. Tell us: Do you think Alba was the best dressed star this week? If not, who’s your number-one pick?

–Jennifer Cress

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