Are you so proud to be a California girl?" she asked before jumping into "California Gurls," which she performed while waving ...

Katy Perry’s onstage costumes are a masterclass in camp. Since popping off in 2008, she’s worn the most whimsical pieces, ...

Katy Perry belted out “California Gurls,” and Joni Mitchell offered a rare performance as Angelenos spoke movingly about loss — and resilience.

This spring, pop star Katy Perry will hit the road for her first tour in seven years, which includes a May 13 stop at Target ...

Pop superstar Katy Perry has announced the U.S. leg of her “The Lifetimes Tour” with a San Francisco date. Perry has six RIAA Diamond singles – “Firework,” “Dark Horse,” “Roar,” ...

Are you so proud to be a California girl?” she asked before jumping into “California Gurls,” which she performed while waving the California state flag and bounding back and forth on the stage.