Katy Perry Roar
Most Followers on Twitter 2013: Katy Perry is Social Media's Most Popular; Beats Justin Bieber
Katy Perry New Album 2013 - 'Prism' Release Date, Tracklist: Record Debuts at No. 1 on Billboard Top 200
Katy Perry New Album 2013 Release Date and Tracklist: Sarah Bareilles Addresses 'ROAR' Rip-Off Rumors
Katy Perry 'Roar' Video Prompts Backlash from PETA
Katy Perry New Album 2013 Release Date and Tracklist: 'ROAR' Music Video Released; Go Behind the Scenes [VIDEO]
Eminem 2013 Songs Climb Billboard Charts: New Single 'Berzerk' at No. 2 Behind Katy Perry's 'Roar'
Katy Perry New Album 2013 Release Date: 'Prism' May Have been Inspired by John Mayer
MTV VMA 2013 Performers & Date: Katy Perry Performs 'ROAR' on Awards Night
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