The Rise of the Half-Up Bun: How a Hybrid Style Became Summer’s Biggest Beauty Phenomenon InlineAugust 4, 2015Save StorySave this storySave StorySave this storyExpandPhoto: Venturelli/WireImage1/7Rooney MaraExpandPhoto: Splash News2/7RihannaExpandPhoto: Andrew Toth/Getty Images for Michael Kors3/7Ashley OlsenExpandPhoto: Splash News4/7Dakota JohnsonExpandPhoto: Courtesy of Laura Bailey / @laurabaileylondon5/7Laura Bailey