Justin Bieber fan runs on stage, tries to grab star during show

A man briefly interrupted a concert performance by Justin Bieber Sunday in Dubai when he stormed the stage and tried to grab the pop star.

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A source close to the 19-year-old singer told ET that the man ran onstage while Bieber was at the piano performing his hit "Believe" and tried to grab him.

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The source said the piano was knocked over during the incident, but the fan was quickly detained by security personnel and Bieber continued the show.

On Sunday, Bieber tweeted: "Dubai. Nothing stops the show. 2 more to go. #BELIEVEtour"

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