1. To get Jessica Biel's hairstyle, start with day old hair -- it'll have more hold.
2. Apply some styling mousse through your hair, focusing especially on your ends.
3. Gather all of your hair into a high ponytail. Loosely twist it into a messy bun, and secure it with an elastic.
4. Using your fingers, tug at the bun to give it a more casual look. Mist all over with lightweight hairspray to finish.
See More Jessica Biel Hairstyles
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