NDTV | Justin Bieber 'retires' on twitter, shocks fans NDTV Teen pop star Justin Bieber stunned many of his fans on Christmas day by tweeting that he is retiring. The 19-year-old singer tweeted on Tuesday, "My beloved beliebers I'm officially retiring." The announcement sent social media into a spin. Before that news ... I'm officially retiring, says Justin Bieber on Twitter Pop star Justin Bieber announces his retirement on Twitter Justin Bieber calling it a career? |