JUSTIN Bieber has sparked concern afer rapping topless on a private jet as fans begged him to “get help”.

He rapped about “flying high” just two days after denying he has been using drugs.

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The 30-year-old singer slowly swayed and slapped his leg while holding a bag of chips, with his eyes looking glazed.

Staring down at the camera, Justin said: “I fly high like a bad guy, I fly high like a magpie, I go high like a bad guy.”

A friend smoked a cigarette and danced around him.

One fan responded to Justin’s new video: “Poor Justin!!!! So talented but waisted! Justin wake up pls! Your son needs you!”

Another said: “This is not helping to end the drug allegations” while a third said: “Bro is not okay, please tell me that y’all can see this too”.

One more said: “Omg! I can just imagine what Hailey Bieber is going through, after giving birth, with a husband who is always floating in the clouds.”

Superstar Bieber denied he was using drugs just two days ago after fans claimed he looked fragile and his eyes were hollow.

Justin’s camp has been dismissive of health concerns, but over the weekend the singer was spotted looking gaunt on a night out with comedian Dave Chapelle in Hollywood.

Dishevelled Justin was seen amid a cloud of smoke as they talked.

According to his rep, however, he is focusing his energies on “actively parenting his newborn son”, six-month-old Jack Blues, and has been spending time in the studio working on new material.

In a statement to Rolling Stone, reps for both Justin and wife Hailey Bieber, called the public’s obsession over the singer’s mental and physical health “exhausting and pitiful and shows that despite the obvious truth, people are committed to keeping negative, salacious, harmful narratives alive.”

The reps added that the last year was “very transformative for him as he ended several close friendships and business relationships that no longer served him.”

However, the statement has done nothing to assuage his fans.

Pictures of Justin looking gaunt and vacant continue to fuel rumours about his mental and physical health.

And Hailey wants to turn things around quickly.

A Hollywood insider told The Sun: “Hailey and Justin have taken a bellyful of negative scrutiny and she’s putting her foot down and saying it has to stop,.

“That said, it hasn’t stopped her and Justin’s friends from being worried about him, and their ongoing status as a couple.

“The consensus is you only have to look at Justin to know that something’s off, and the worry is that it seems to be getting worse.”

The US star, 28, has continued to work and modelled in a shoot for her make-up brand Rhode.

Pals reportedly say she has “put up with a lot” in the marriage and urge her to leave Justin.

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