He gave his fan suffering from "Bieber Fever" and actual heart attack when news came out that on Thursday night the 19-year-old fainted backstage at a concert in London.

Bieber says he is "getting better," according to ABC News.

A spokesman for the O2 Arena said the 19-year-old pop star was treated backstage during Thursday's concert after becoming short of breath, but recovered and finished his set.

"As far as we are concerned everything is on, on, on" for Friday's show, Jeremy King said, reported ABC News.

Adding, "He was treated by our team of medics and after further examination they didn't find anything more serious or worrying."

While at the hospital Bieber posted a shirtless photo of himself and said, via Twitter, that he was getting better and listening to Janis Joplin. He then thanked "everyone pulling me thru tonight."

"Best fans in the world," he wrote. "Figuring out what happened. Thanks for the love."

Video footage from the concert shows Bieber appearing to fade during a performance of his up-tempo hit, "Beauty and a Beat." He slows down, puts a hand to his head then bends over, resting his hands on knees before walking slowly to the back of the stage.

The AP spoke to 18-year-old journalism student Prithvi Pandya, who shot the footage, to confirm its authenticity.

"When he started 'Beauty and a Beat' you could see he was struggling," said Pandya, who was near the front of the crowd. "He took lots of drinks of water, that seemed unusual, and he was really sweaty, sweating a helluva lot.

"Toward the end of it, he went backstage. We didn't see him fainting. They brought on dancers to entertain, and I knew something was wrong at that point."

Bieber's manager, Scooter Braun, appeared onstage and told the crowd that the singer was feeling "very low of breath" but would come back to finish the show.

With all this happening, it might be time to shut him down for a few months to rest and recuperate?