We've seen just about everything in terms of tousled, beachy hair this summer. So, when we saw Emma Stone's polished, retro-glam hair at the New York premiere of Crazy, Stupid Love, we went, um, crazy for it. The sleek, side-parted 'do was whipped up by hairstylist Mara Roszak, who shared a quick how-to: Part hair on the side and apply Leonor Greyl mousse to wet hair. Blow dry hair with a small, round brush from and pin curl. Spray curls with Leonor Greyl Voluforme hairspray. Let the hair sit for 5 minutes, the brush out curls with a soft boar bristle brush. Gently mold into classic, soft wave and finish with hairspray. Pairing the look with soft, dusty rose eyeshadow and a zingy fuchsia lip color won't hurt either.