Since her return from a brief sojourn to outer space, Katy Perry has been brought — rather forcefully — down to earth.

Her post-trip conference was deemed tone-deaf and vapid by many, and other celebrities such as Emily Ratajkowski, Lily Allen ...

Katy Perry supported Lady Gaga at her Mexico City concert on Sunday, April 27, days after Perry launched her Lifetimes Tour.

Katy Perry has gushed about fellow pop star Lady Gaga. In addition to her kind words, the Last Friday Night singer shared a ...

Katy Perry loves sharing her woman's world with Lady Gaga. In the crowd at Mother Monster's ¡Viva La Mayhem! concert in ...

The Little Monster-KatyCat stan wars can stop: these pop divas are friends! On Sunday night, Katy Perry was spotted in the ...

Just over a week after Katy Perry touched down on Earth following the Blue Origin space flight, the international pop star ...

Pop star Katy Perry has been brutally roasted for debuting a galactic ensemble as she kicks off her first tour in nearly ...

Pop star Katy Perry broke down and wept on stage during a recent concert, amid a loud online backlash about her current tour.

Social media users slammed Katy Perry after the "Thinking of You" singer revealed a spacesuit costume weeks after her Blue ...

Not long after her Blue Origin space flight faced backlash, Katy Perry launched her Lifetimes Tour with the first concert in ...