Looks like the Biebs had a freak-out that even Britney would be proud of!
The kid who's had more run-ins with crazy paparazzi than A-Rod has steroids - Justin had a little hissy-fit in London when a pap apparently said something that threw him into an F-Word tailspin! Check out the video below and be happy that you're not him.
I would really like to see just HOW tough he thinks he is, though. Someday....