From the gas masks to his ever-growing shirtless appearances, Justin Bieber has come under fire as of late for his increasingly troubling behavior. Reacting to the criticism, the 19-year-old attempted to assuage fans' worries in a recent interview with Us Weekly.
"I'm young and I make mistakes. That's part of growing up," explained the Biebs. "I mess up sometimes. It's part of growing up."