Justin bieber cuts his hair - for real this time!

Teen heartthrob Justin Bieber has joked about cutting his hair before, even posing in a bald cap recently on TV. 

But in a move destined to shock and distress his millions of teen fans, the singer has now actually cropped his hair, in to a cool, short, spiky look.

As a nation of Beliebers weep, Justin said that he "awanted to change things up" and that the new style was "kind of a mature look." 

The most-loved hair in the world isn't going to waste though - the lengths that were cut from Justin's head will be auctioned off for charity.