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

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

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

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

Katy Perry's fight over a Montecito mansion has ended, with the star winning $2 million in a long real estate battle with a Texas millionaire.

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

Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. Katy Perry's Teenage Dream — one of the most successful pop albums ...

Sixteen years ago today, a bubblegum blast of whipped cream and beach sunshine took over the top of the Billboard Hot 100 and refused to budge. On June 19, 2010, Katy Perry's "California Gurls," ...

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 ...

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 ...