![Justin Bieber takes to the stage with Usher for Rockerfeller Christmas gig... as Mariah Yeater demands SECOND paternity test | Daily Mail Online Justin Bieber takes to the stage with Usher for Rockerfeller Christmas gig... as Mariah Yeater demands SECOND paternity test | Daily Mail Online](http://i.dailymail.co.uk/i/pix/2011/11/24/article-0-0EEC3E0200000578-682_634x530.jpg)
Justin Bieber takes to the stage with Usher for Rockerfeller Christmas gig... as Mariah Yeater demands SECOND paternity test | Daily Mail Online
![Justin Bieber: 'Believe' Tour Stop in Los Angeles!: Photo 2732935 | Justin Bieber Photos | Just Jared: Entertainment News Justin Bieber: 'Believe' Tour Stop in Los Angeles!: Photo 2732935 | Justin Bieber Photos | Just Jared: Entertainment News](https://cdn.justjared.com/wp-content/uploads/2012/10/justin-concert/justin-bieber-concert-performance-09.jpg)
Justin Bieber: 'Believe' Tour Stop in Los Angeles!: Photo 2732935 | Justin Bieber Photos | Just Jared: Entertainment News
![Justin Bieber: 'Believe' Tour Stop in Los Angeles!: Photo 2732927 | Justin Bieber Photos | Just Jared: Entertainment News Justin Bieber: 'Believe' Tour Stop in Los Angeles!: Photo 2732927 | Justin Bieber Photos | Just Jared: Entertainment News](https://cdn.justjared.com/wp-content/uploads/2012/10/justin-concert/justin-bieber-concert-performance-08.jpg)