Justin Bieber collapsed at his London concert, then went to the hospital for observation.
As he left the hospital on Friday morning, he lost his temper— and he was caught on tape losing his cool.
Bieber apparently made contact with a paparazzo as he barreled out of his hotel, leading the man to shout, "That's assault" and let fly with a couple of profane statements, one urging the singer to, ahem, go back to America and the other calling him a "little moron."
The 19-year-old had gotten into his car by that point, but apparently heard the insults and came flying out, dropping F-bombs of his own and threatening to beat up the photographer.
