Justin Bieber is allegedly on the brink of having a 'mental breakdown' after claims that he is finding it hard to deal with the pressures of fame and his hectic work schedule.
Reports suggest that the 16-year old singing sensation lost over 10 pounds in weight and even collapsed at a gig last month after suffering from 'exhaustion.'
According to the National Enquirer, the Somebody To Love star cancelled an appearance at the New York State Fair in August because he was so ill, he passed out beforehand.
A source told the publication: "Justin couldn't go on. He hit the bed and virtually passed out. I think he was wiped out physically and mentally. He crashed. The vicious work treadmill finally caught up with Justin the night he cancelled."
They continued: "He gives every show his all, but he suddenly got light-headed and very woozy.He had to go to bed because he felt dizzy. The kid is seriously fatigued"
Despite claims that Justin pulled-out of the show because he was 'super-sick', the insider added that the teenager needs a 'proper break' from work in order to make a full recovery.
They explained: "Justin puts on a brave front for the cameras, but he's still weak, and doctors insist that he rest more or else he risks another collapse."
"But he can't - or won't - because he doesn't want to disappoint his mom, his manager or his fans."
Regardless of the fears for his health, Justin has expressed his excitement at making his debut at the VMAs on Sunday.
The One Time hitmaker took to Twitter, telling his followers: "Off to rehearsal for the VMA's!! We are almost there...just 4 Days now!!!"
He later added: "Hyped about this VMA performance....gonna be sick!!!"
MTV
