A tousled lob is currently the most popular haircut on Pinterest, and it's blowing up in the It girl-sphere as we speak. Victoria's Secret model Elsa Hosk is known for her long blonde locks but recently gave them a major chop. She posted a selfie on Instagram debuting a much shorter, curlier 'do. The model's natural hair texture is full of spirals and her new cut makes them all the more bountiful. The change comes just ahead of fashion month, where she'll likely be strutting the catwalk for plenty of big brands. We're wondering if she'll pull a Kendall Jenner and keep her strands short for the long haul or pop in extensions when she gets the chance. Either way, it's the perfect switch-up for fall.