Justin Bieber is celebrating his 23rd birthday today, and we absolutely can't believe it. It feels like only yesterday when he was a literal baby crooning "Baby," and now look at how grown up he is! If two things have been consistent about the singer's career, it's that he has kept delivering hit after hit musically, and his constant hair switch-ups have always kept us on the edge of our seats.
To pay tribute to his big day, we're rounding up some of the most dramatically different red carpet looks and selfies he's snapped over the course of his career – which all are already so different than the platinum blond buzz cut he's currently sporting.
Click through the gallery to see some of Justin's most dramatic hair makeovers from over the years, and make sure to wish him a very happy birthday in the comments section below.