This week, photos leaked of a naked Justin Bieber serenading his grandma for her birthday with only a guitar covering up his Justin Jr. It was, umm, weird. But just another dot on the timeline that is Bieber's 2013. He's been acting out a lot this year and we're not sure why. It might be the breakup with Selena Gomez. Or maybe he's starting to crack from the pressures of stardom like so many child stars before him. Or maybe he's just hanging out with Lil Twist too much.

Or maybe, just maybe, he's a 19-year-old kid doing the dumb shit every 19-year-old kid does—except there's a gang of photographers stalking him just waiting for him to slip up so they can broadcast it to the entire world. Maybe.  

Still, we're rooting for the little homie who graced our 10th anniversary cover in 2012. We hope he gets his act together. But we're not too worried. When he grows up, he'll look back at this time and laugh. But for now, check out A Recent History of Justin Bieber's Most Badass Moments.

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