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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BIG BUNS

Full, voluminous topknots are a red carpet mainstay, but the look has trickled down to weekend wear as well. To get a do like Rihanna's, grab a hair donut, pull the ponytail through it, then pin strands around it.