Should we be worried about Justin Bieber?

Another week, another instance of Justin Bieber getting in some trouble. This time, he was accused of hitting a photographer with his car, sending the paparazzo to the hospital. Though it was eventually determined that the Biebs was not at fault, it seems like the pop star is struggling. But is he really in a downward spiral, or is this just a case of a normal teenager living life in the spotlight?

What do you think? Is Bieber's recent behaviour cause for concern, or is he just going through normal growing pains? Let us know your thoughts in the comments.