Summer Beauty Do's & Don'ts

Get the lowdown on the must-have looks of the season from PEOPLE's beauty expert. By Serena Kappes

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TREND: FUN FABRIC HEADBANDS

DO: Wear them in bright colors to stay cool in the heat and dress up your outfit (as seen on Beyoncé and Naomi Watts). "They make you look polished," says PEOPLE beauty editor Eleni Gage.

DON'T: Push the accessory too far back on your head. "You'll look like a schoolgirl."