Justin Bieber shared a message about going crazy amid fan concern surrounding his social media posts and recent behavior

Justin Bieber last week took to Instagram to share a deeply personal and cryptic message, revealing feelings of unworthiness and the struggle with a sense of being a fraud - and has now shared a second emotional message hinting to how he's feeling.

Pop superstar Justin Bieber continues his streak of cryptic messages after his recent controversial outings caused fans to express concern about his behavior. In a new post on social media, the singer took a defiant stance against his critics as he noted he has "nothing to prove" to anyone.