Justin Bieber has a hidden flaw - he's struggling to straighten his teeth.
In a new Rolling Stone expose, the Baby singer reveals he has been wearing a set of invisible braces on his teeth for the past year.
He explains, "They (teeth) were pointed inwards a little bit, so they had to bring them out, but when they did that, it made a small space in my teeth, and now they have to push that in... It hurts."