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

Katy Perry will be supported by Rebecca Black on 'The Lifetimes Tour'.

Katy Perry will be supported by Rebecca Black on 'The Lifetimes Tour'. The 'Firework' hitmaker was a surprise guest at the ...

And like the iconic lyrics, seen to glamorize the darkest of figures, the Illuminati were castigated as atheists and ...

Katy Perry is dealing with major career stress as a ton of seats remain unsold for her make or break tour – but she’s vowing ...

Katy Perry was a judge on ‘American Idol’ for seven years until she announced she was leaving the singing competition in ...

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

Katy Perry teamed up with Rebecca Black to perform 'Last Friday Night (T.G.I.F.)' and invited her on the Lifetimes Tour.