Katy Perry, once among the most dominant forces in pop music, is reportedly "at the end of her rope" following a series of professional and public image setbacks, and believes her ...

Katy Perry reportedly blames American Idol for her career downfall amid flops, backlash, and a fading $400M pop empire.

Friday we witnessed history, according to Twitter. Katy Perry, whose new album is titled "Witness," is the first person to reach 100 million followers on Twitter. SEE ALSO: Why am I watching a ...