Justin Bieber is 18. He can legally drink, drive and bewhatever he wants to be. Justin Bieber is legally an adult. But the question remains...Is the teen sensation up to being a man? Legally Bieber: Justin Bieber At 18: An Unauthorized Look At His First Year As An Adult follows the multi-platinum singer from his 18th birthday, through a new album and a monster tour. We are at his back as he acts and reacts to personal and professional challenges. In this month-by-month odyssey, we see the young singer just this side of manhood; acting the seasoned professional, acting the fool and, at the end of the day, acting decidedly human and t quite grown up. It is a year full of high drama with lessons learned, often the hard way, and the kind of education that can only be learned at the feet of pop culture and stardom. Legally Bieber: Justin BieberAt 18: An Unauthorized Look At His First Year As An Adult is his truth laid bare. Can he handle it? Can you?