American Idol' judge Katy Perry hoped for sold-out venues with her new world tour. Unfortunately, she's reportedly ...

this unmissable spectacle features hit after hit after hit, and The Prismatic World Tour Live truly captures the excitement, color and energy of the live Katy Perry extravaganza.

"She held her own, and she remained cool, calm and collected, and I think a lot of that has to do with 'Idol' and all of her live ... in After Katy Perry Exit, Inauguration Performance appeared ...

Katy Perry reteamed with Rebecca Black last night, and their joining forces is looking to last through Lifetimes — as in Perry’s so-named tour. Black, who appeared in Perry’s 2011 video for ...

Rapper Jay-Z sues woman who accused him of rape and her lawyers Katy Perry is facing an uphill ... changes and the art of storytelling in a live performance. "Katy saw one of Taylor's shows ...

Pop superstar Katy ... Perry faces difficult choices about scaling back ambitions or potentially disappointing fans with cancellations. The success of her previous tours indicates she has the ...