Hair Highlights: Easy Updos

Feeling Knotty: Margherita Missoni makes a messy bun look Bohemian chic, thanks to bold accessories and a touch of gold shadow.

Gym Dandy: Sarah Jessica Parker's 'do may seem like your post-workout look, but her shimmery eye makeup and sparkly earrings make it red carpet-ready.

Soft Sell: Kate Bosworth skips the smoothing serum and lets her hair stay wispy.

Easy Does It: With her striking features, Rosie Huntington-Whitely could pull off any style. Here, her updo is the epitome of effortlessness.

New Heights: Like Moretz, Elizabeth Olsen wears her slightly undone bun high on her head. The look lifts the cheekbones and makes her eyes pop.

In Top Form: Actress Chloë Moretz opts for a playful topknot that's young and age-appropriate, but still sophisticated.

Swept Away: Emma Stone creates a romantic look with side-swept bangs that softly frame her face.

Left Stranded: A long, loosely curled tendril gives Marisa Tomei's look a hint of whimsy.