Justin Bieber's a reformed man! There's no more over-reacting, getting angry, nervous and excited, the new Biebs 2.0 is calm, cool and collected and when he confronted our photographer today after a hike regarding the incident three weeks ago in which Bieber almost ran over a paparazzo.

Justin called out the photographer for not helping his friend who was laid out on the ground but instead yelling and making the scene more chaotic. And truth be told, Justin's 100% right. Watch how it went down last month as Bieber left a church event ...