10 Things You Didn't Know About Justin Bieber

The meteoric rise of singer Justin Bieber from YouTube phenomenon to teen idol has wowed the pop music world and prompted comparisons to none other than Michael Jackson. Yet outside of a certain demographic -- i.e. teenage girls -- the young Canadian remains something of a mystery. Justin recently sat down with Chris Connelly of "Nightline" to fill in some of the blanks. For 10 things you still may not know about Justin Bieber, read on. 1. Justin Bieber's voice is changing. "I'm at that age...Full Story