Justin Bieber is sharing some unfiltered thoughts on his rise to fame. In a candid post to his Instagram story Thursday, the pop star told followers that he has long struggled with feeling worthy of the accolades he's collected along the way.

Lately, his music star power's been overshadowed by speculation surrounding his health, behavior, and relationship with his wife, Hailey Bieber.

Justin Bieber has admitted he sometimes struggles with feeling like he deserves his success. The Peaches singer shot to global fame as a child performer when his cover videos on YouTube garnered a large following,