1. To get Olivia Wilde's hairstyle, apply styling mousse to dry hair and comb it up into a high bun. Secure it with an elastic.
2. Use a flat iron to straighten your bangs, and sweep them to the side with a bit of gel.
3. Mist all over with anti-frizz hairspray to prevent flyaways.
See More Olivia Wilde Hairstyles
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