Katy Perry was left devastated after her headline set at Werchter Boutique was cancelled at the last minute. See details.

Katy Perry may have been eclipsed by other female performers in recent years, but her sold-out Irish show proved she's still ...

Katy Perry brought California to Oxfordshire as she wowed with hit after hit during her headline set at Blenheim Palace ...

Storming the stage in a shirt and tie number, Katy Perry deals a frenzied version of her hit California Girls to open her ...

The couple enjoyed a romantic sun-filled outing after Perry described Trudeau as “the love of [her] life.” ...

The summer smash began a record run of five No. 1 hits from a single album.

In USA TODAY’s The Essentials, celebrities share what fuels their lives, whether it's at home, on set or on the road. As she prepares to embark on her first world tour in seven years, Katy Perry needs ...

Two years after 143 was first released, it may be time to give the dance pop album a second spin -- and a second opinion.

Katy Perry is bringing “The Lifetimes Tour” to the United States. After selling out shows around the world, Perry is extending the tour for a domestic run. The U.S. leg of the tour kicks off on May 7 ...

Triumphant Katy Perry is plotting a "revenge" pregnancy with new beau Justin Trudeau – less than a year after her decade-long romance with Orlando Bloom burned out, RadarOnline.com can reveal. "Katy's ...

Actor Chris Pratt could well be called upon to testify in singer Katy Perry’s bitter legal battle against an ailing veteran whose Montecito, CA, home she purchased five years ago. Pratt, 46, and his ...