Credit: Andrew H. Walker/Getty; Jason Merritt/FilmMagic

Justin Bieber may only be 16-years-old, but the pop phenomenon is already a favorite of Hollywood ladies of all ages, including Ellen DeGeneres, Kim Kardashian, Chelsea Handler and Taylor Swift! The Canadian singer, whose super-swooped crop has reached cult status thanks to his cunning ability to toss it just so, isn't shy about his Hollywood crushes either: "I'm waiting for Beyonce to call," he famously told reporters. To celebrate the addition of Bieber's iconic hairstyle to our Hollywood Makeover tool, we tested it on some his biggest (and most famous) fans! Click on to see stars with Bieber fever working his adorable crop.