Katy Perry is re-releasing her 2009 acoustic EP, 'Live At MTV Unplugged,' on lavender-colored vinyl later this year.

Carrie Underwood replaced Katy as a judge on ‘American Idol,’ but some fans miss the ‘Teenage Dream’ hitmaker. Find out why ...

Katy Perry and Lady Gaga just reignited the “Roar” vs. “Applause” debate that had lay dormant for more than a decade. The two ...

American Idol returned to ABC on Sunday for its 23rd season, with former champion Carrie Underwood joining the judging panel ...

Katy Perry's 2010 hit 'California Gurls' has joined the Spotify Billions Club after reaching one billion streams on the ...