Stars' Freshest Spring Beauty Trends

From Katie Holmes's sexy waves to Heidi Klum's vivid shadow, see how stars are putting a Hollywood spin on the prettiest new looks

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UNDONE UPDO

Whether you're heading to a formal fête like Vanessa Hudgens or taking your style to the streets, keep your locks modern by letting your updo get a little messy. Create natural-looking curls by alternating larger- and smaller-barrel curling irons.