Katy Perry Beats Bieber, Taylor as Biggest Act on Twitter in 2013

RollingStone.comKaty Perry Beats Bieber, Taylor as Biggest Act on Twitter in 2013RollingStone.comKaty Perry has yet another victory to roar about these days. According to stats provided by Twitter, she's the reigning champ of of the 140-character social-media service, attracting over 1.5 million followers per month this past year to reach nearly ...