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Rihanna, Justin Bieber Top Billboard's Social 50 Chart - Music, Celebrity, Artist News | MTV
Rihanna, Justin Bieber appear at the top of Billboard's new chart, The Social 50, which rates artists' popularity on various social-networking websites.
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RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
RT @MTVEurope: Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/ifhmo2
Rihanna, Justin Bieber Top <i>Billboard</i>'s Social 50 Chart http://on.mtv.com/h4IKqK
Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/gsMSB0
Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://on.mtv.com/gsMSB0
#Rihanna Rihanna, Justin Bieber Top Billboard's Social 50 Chart http://dlvr.it/B0W9V