1. To get Mischa Barton's hairstyle, unwashed, day-old hair is best for such a textured style.
2. Brush hair into a high ponytail and secure with an elastic, wrapping one piece of hair around the band to hid your hair tie.
3. Curl random pieces of your ponytail with a 1 1/2 to 2 -inch curling iron, depending on how wavy you want it.
4. Finger comb curls to break them up and mist well with hairspray to keep your style looking good all night.
See More Mischa Barton Hairstyles
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