Celebrity Style: Miranda Kerr, Rachel Bilson, Kate Bosworth

Who: Jessica Alba

Style M.O.: Melding both the feminine and the borrowed-from-the-boys aesthetic for an effortless appeal; fitted, wide-leg jeans; floaty scarves; platforms and biker boots.

Why We Love Her: As far as wardrobes go, Jessica Alba's ranks pretty high on the list of those we'd like to steal. We've fallen hard both for her uniform of denim, ankle boots, and knit layers, as well as the polished-cool vibe she's mastered in printed dresses and menswear. Even as a busy mom of two, Jess keeps things fun and on-trend.