I don't know about you, but he's feeling 22--Justin Bieber, that is. March 1st marks pop superstar Justin Bieber's 22nd birthday, and he's sure to celebrate in serious celebrity style. To ring in this auspicious occasion, we're taking a look back at his most shocking moments and the onstage events that have made him an international superstar.

The Breakup Heard 'Round The World

Celebrity romances come and go, but you couldn't tell from the reaction people had when Justin Bieber and Selena Gomez ended their turbulent love affair. The two had been teenage sweethearts and each other's first loves, and fans were devastated when the couple called it quits for good in 2014. But love doesn't go so easily into that good night; both pop stars have written songs about one another, and even now it seems the two are still entangled in each others' lives--a fact that Gomez may not entirely enjoy.

Hitting The Streets

2014 wasn't a great year for the Biebs; he ended his epic romance with Selena Gomez, and ran afoul of the police. In January he was arrested for drunk driving, street racing, and resisting arrest. This was mere weeks after the pop superstar was accused of egging his neighbor's home, causing roughly $20,000 in damages. Ultimately Bieber pled guilty to lesser charges and faced no jail time for his wild antics.

When You Gotta Go...

Look, everyone has had a bathroom emergency in their lifetime--why should internationally famous pop stars be any different? Unfortunately when you're Justin Bieber, pretty much every moment of your life is going to get caught on camera. And this one--wherein the singer made the baffling choice to urinate in a mop bucket he found in the back of a restaurant--went viral fast. People were more than a little put-off by his behavior (to put it mildly); Bieber later apologized in a series of Tweets, and had a phone chat with former President Bill Clinton--who inexplicably was the target of the pop star's mid-pee rant.

All Grown Up

Many of us remember Justin Bieber from when he was a fresh-faced youth crooning sweet and innocent songs. Well, the pop star is all grown up--and he wants to make sure everybody knows this. So how do you get the word out that you're not a child star anymore? You hit the gym, bulk up big time, and then strip down onstage at an awards show. At least, that's the option Bieber went with. We have to admit, it's a surprisingly effective move.

Sorry Not Sorry

Sometimes a video comes along and makes a song even more insanely popular than you imagined possible. This was the case for "Sorry," a simple (and simply brilliant) video that features the adventures of a guy trying to apologize to a girl (who many noted looked suspiciously like Bieber's ex, Selena Gomez). Bieber doesn't even appear in the video, allowing his lyrics to instead take a starring role. The results were a runaway hit single, an enormously popular song, and a host of clever Halloween costumes. Add in all the rumors about who the song was really about (and if Bieber is still trying to make amends with Gomez), and you have one of the most talked-about tunes of the year.

Tags: Justin Bieber Selena Gomez Selena Gomez Justin Bieber