Watch : Justin Bieber Almost Got Arrested After Pulling Prank

Mr. Biebs himself getting into some almost-trouble with the police. Not to worry, all is fine now, but here's the story we're hearing.Apparently backstage at his show in Maryland, Justin and some pals were passing the time trying to throw water baloons at people's crotches - we're guessing to make people think they'd had a little accident of sorts or something along those lines. Sounds like fun