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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Emma Watson's pixie is often playfully messy, but for an evening event, the star amps up the drama with a high-gloss do. Comb gel through hair for hold, then douse with shine spray for a not-a-hair-out-of-place coif.