All Grown Up and Hot: 12 celebrity transformations that shocked the world (With Pictures)

6. Justin Bieber

Justin Bieber first grabbed our hearts and eyes at just the age of 13. The young star was expected to blow up but not as much as he has today. Bieber had released his last album in 2013 and then took a small break before he would release his current album, Purpose, in 2015 which is when we saw his drop dead gorgeous transformation. From a sweet teen to this more edgy pop star, the 21-year-old was beginning to win the hearts of an older crowd as opposed to before when he was just popular among the underage group. Today, Justin is comfortable switching up his looks including that blonde comb-over which not everyone is a fan of but we have to say, he has grown up so fast.