Stars' Prettiest Spring Hairstyles

Dianna Agron, Rihanna, Emma Watson and more show off the most lust-worthy lock looks of the season

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LOOSE SIDE BUNS

An easy-to-do hairstyle that is both office and party appropriate, Kate Mara's low, off-center knot can be achieved with hairpins and hair spray. Add serum before styling to keep frizz at bay, and be sure to pull front strands out softly to keep the look elegant instead of gym-worthy.