Amid the hysterical female fans, one can be heard screaming: “Justin! Oh my God, Justin! AHH!!”
From the U.K. Telegraph:
The 19-year-old was playing the piano when the man jumped onto the stage and grabbed him from behind.
In chaotic scenes, Bieber managed to free himself and run to the side of the stage while security guards tried to tackle the man.
During the melee the [piano was tipped over], according to the Dubai-based National newspaper.
He was eventually caught by security guards.
Video from audience-members showed security guards running across the stage as the piano lay upturned.
An accompanying tweet said: ‘Whoa. Crazy fan tackled @justinbieber and knocked the piano down the stage. Mayhem.’
While Bieber was shaken, he was unhurt, and the band finished the song while the fan was removed from the stage.