JUSTIN Bieber has revealed he relies on ADHD medication Adderall to concentrate.
The Sorry singer - who will be performing at this year's BRITS - admitted he struggles to get a good night's sleep and so has been taking the stimulant to keep him focused during the day, for "about a year".
Speaking to GQ magazine, Justin said: "(I've been taking the drug for) about a year now, but I think I'm about to get off of it because I feel like it's giving me anxiety."
And in a bid to ween himself off the hard stuff, Selena Gomez' ex admitted he wanted to slowly swap Adderall for "natural sleep aids".
"I’ve been getting a lot of anxiety, and they think it’s stemming from the Adderall.
Justin Bieber has been taking Aderall for "about a year" [Justin Bieber/Instagram]
"That’s why I’ve stopped taking it. Or else I wouldn’t stop, because I really enjoy it."
During the interview, Justin - who recently got a new puppy - said: "This is my first day off Adderall.
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