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Yes Justin Bieber did mime some of his song on x factor but its not his fault if you watch his film 'never say never' it explains it all, Justin bieber was suffering from a throat infection and had lost most of his voice, he only mimed on xfactor because he doesn't like to let the millions of fans that support him down too. But who cares JUSTIN BIEBER IS GORGEOUS! HE CAN SING AND HES AN AMAZING DANCER HE MIMED ON XFACTOR WHO CARE'S :-D

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14y ago

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