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.

Justin Bieber breaks silence amid escalating fan concern over his wellbeing - Fans have expressed concern for the Baby singer after recent photos showed him looking dishevelled

Justin Bieber's social media activity has been raising eyebrows among concerned fans. In January, Bieber sent his fans into a stress spiral when he stopped following his wife, Hailey, on Instagram. Hours later,