Although Katy ... stage, Perry sang what was an absolutely essential track for the night. “California, you are such a unique state, and I am so proud. Are you so proud to be a California girl?” she ...

By Joe Lynch Executive Digital Director Although Katy Perry is best-known ... Are you so proud to be a California girl?” she asked before jumping into “California Gurls,” which she performed ...

California-born Katy Perry proudly waved the state's flag as she belted out hits like California Gurls. Other performers included Orange County's No Doubt and Dr Dre, who delivered his anthem ...

Katy Perry mixed athleisure and lingerie while performing at the opening ceremony of the Invictus Games on Feb. 8.

Katy Perry isn't fazed by her critics. Speaking with PEOPLE about her newly announced Lifetimes Tour, which is in support of her album 143, the "Hot N Cold" singer revealed she does read her album ...