Beauty Hair Celebrity Hairstyles The Most Dramatic Celebrity Makeovers of 2015 By Sheryl George Sheryl George Sheryl George is a NYC-based writer and editor. She covers all things hair, nails, makeup, and more. InStyle's editorial guidelines Updated on December 30, 2015 @ 05:30PM Pin Share Tweet Email Photo: Jason Merritt/Getty Images, Jim Spellman/WireImage Nothing can transform a look more than a major chop or a new dye job. From going platinum to edgy bobs, Hollywood has no shortage of style chameleons. These were our favorite looks from the past twelve months. Jennifer LopezFrom long blonde layered locks, Lopez (at top) went for a major chop with a caramel lob this past summer. "It's short but it’s still feminine and she can still pull it back. The length is perfect—it offers versatility and feels fresh," says her longtime hairstylist Oribe. Kim Kardashian Vivien Killilea/Getty Images, PJB/SIPA The iconic brunette traded in her dark strands for platinum blonde in March and in the process, the Internet nearly broke (again). Though the star once told us that "brunette is who I am," we wouldn't be surprised if she continues to turn heads and headlines next year. The Most Tried-On Hairstyles of 2015 Gabrielle Union Jason LaVeris/FilmMagic, Rob Kim/Getty Images The Being Mary Jane actress snipped her usual shoulder-length strands into an edgy bob in September. Wavy ends gave the look a casual-cool touch. Emma Roberts Mike Pont/WireImage, Jamie McCarthy/Getty Images After wrapping Scream Queens, Roberts became another member of the lob squad when she ditched Chanel Oberlin's long tresses. Lauren Conrad David Livingston/Getty Images, laurenconrad/Instagram Known for her California blonde hair, Conrad switched her signature color to a deep auburn, similar to that of her longtime stylist Kristin Ess. Conrad even caption a recent selfie of the two of them saying, "Clearly, I'm obsessed with@kristin_ess..." 20 Tips for Better Hair in 2016 Kylie Jenner Dimitrios Kambouris/WireImage, Bennett Raglin/WireImage, Mike Windle/Getty Images A transformation gallery would not be complete without a Kardashian and a Jenner, and the younger sister might be the most daring of them all. Constantly switching up her hair from black to blonde—and even to mint green—there was no shortage of changes (and wigs) for this reality star. Naomi Campbell David M. Benett/Getty Images, Mike Marsland/WireImage The supermodel's long sleek strands and blunt fringe have been her mainstay, but the shorter 'do with a feathered fringe that she debuted last month, makes her look more youthful than ever.