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.
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?