Of course, if you want to steal Rose Byrne’s hairstyle, you’ll have to get a bob haircut first. Which, considering how popular this style is right now, isn’t a bad idea. Then you can use tips from John Frieda International Creative Consultant Harry Josh, who created this look for Byrne. He says to start by applying a heat protectant product, then blow dry hair with a round brush. Next, flat iron hair in small sections, but leave out your roots so they keep their volume. Finish by smoothing down any flyways (Josh likes John Frieda Full Repair Touch-Up Flyaway Tamer, $9.99).