Los Angeles - Pop star Justin Bieber (31) has shared an emotional message on his Instagram channel.

In his stories, the 31-year-old singer spoke openly and honestly about his impostor syndrome, which makes people feel like impostors despite their obvious qualifications and successes.

Justin wrote that he felt "unworthy" and "deceitful" because if people knew how judgmental or selfish he was, they probably wouldn't see him in the same way.

At the same time, he encouraged his fans and added: "If any of you out there feel the same way - you're not alone, because I definitely feel unequipped and unqualified most days."

Just a few days ago, according to TMZ , the musician had shared another story entry in which he addressed his fans and wrote that none of them had anything to prove.

This led to speculation among some followers about the 31-year-old's mental health.

Several US media outlets picked up on the speculation in the comments section, whereupon Justin and Hailey (28) defended themselves against claims about the singer's health.

A spokesperson for the celebrity couple called the persistent rumors "exhausting and unfortunate". He said it showed that "despite the obvious truth, people are determined to keep negative, salacious and damaging narratives alive".