Justin Bieber Goofs on Manhood in Believe Teaser (watch!)

Justin Bieber still has a long way to go on his journey from boy to man, judging by his efforts to grow a mustache. Yes, he definitely has one, but it’s as thin and wispy as his slender build. Maybe he can train it to lift weights? The Biebs, 19, has been pumping iron in an attempt to man up his body into a human dynamo with somewhat better results, although he’s spark some speculation that he may be dabbling in steroid use....