Perry has been loping around the world on this tour for four months. Her Philadelphia stop was the 33rd city on the Lifetimes ...

Katy Perry fans have been channeling some of the singer's most iconic looks while attending her Lifetimes Tour. The concert ...

The pop star performed from her list of hits, including “I Kissed a Girl,” “Last Friday Night,” “Roar” and more.

As a kid who grew up on radio, Katy Perry was part of the soundtrack of my life. And, as the first female artist (second to only Michael Jackson) to achieve the record of having five number-one ...