New York, NY -- Justin Bieber wants you to know he's not having a meltdown. He tells Teen Vogue that he's "very much in control." He says he learned from Jay-Z that he doesn't need to respond to every rumor about him. It's hard, though. He says he sometimes wants to tweet back at people who write nasty things about him, but he says if he does that he'll make them "way more famous by tweeting them."