A new look for the new year!

Justin Bieber dyed his brunette locks blonde, on Thursday and debuted the new 'do on his Fahlo account with the caption, #BlondeBieber.

It's not the only change the underage singer has made, of late -- X17online was the first to report the Biebs moved into a new, modern mega-mansion this week, after vacating his Beverly Hills condo.

In addition, it seems the heartthrob has got a new girl -- model and Jenner BFF Hailey Baldwin. Lots of changes for the 20 year-old millionaire!