WATCH: Justin Bieber, Usher and Jaden Smith Surprise Fans at Screening

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Bieber Fever reached a fever pitch this weekend as Justin Bieber, Usher and Jaden Smith surprised L.A. theatergoers at a screening of 'Justin Bieber: Never Say Never.' Listen to those screams!

Theatergoers could barely contain themselves as the trio walked into the theater, giving 3D an entirely new meaning.

Featuring all three stars, 'Justin Bieber: Never Say Never' cleaned up at the box office this weekend with an incredible $30.3 million haul.

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