Yesterday Justin Bieber was trapped in his Liverpool hotel room, and ordered by police to stay inside until the huge throng of girls outside chanting his name dispersed. Here's some video:

(My favorite person is the guy sheepishly saying "booooooo" in the background.) In an attempt to escape, Bieber used a daring "whatup" Twitter maneuver, that was ultimately successful. Welcome back to the world (2.0), Justin. We missed you.