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.

Get ready to “Roar” this summer for popstar Katy Perry, who will be stopping in Phoenix as part of her world tour! The singer of hits like “California Gurls” will light up the stage like a “Firework” ...

Her hit single "California Gurls" has been certified diamond by the ... Her radio blockbusters "Bad Romance" and "Just Dance" have already achieved 11-times platinum certifications, and "Poker ...

Pop superstar Katy Perry has announced she is coming to Ireland. The 'California Gurls' singer is bringing, The Lifetimes ...