From heartthrob to hard times, a look at Justin Bieber's highs, lows

It seems like Justin Bieber is in the news nowadays mostly for his bad behavior. But it was just in 2009 — when he was 15 — that his debut song "One Time" became a hit. In the five years since, his career skyrocketed ... and his popularity now marred by recent arrests. 

Here is the trajectory of his career, from early highs to present day troubles and everything in between.