And in a week, Katy ... "Firework," which topped the Billboard Hot 100 for four weeks. "and speaking of work, WOMAN'S WORLD IS GOING TO WORK IN ONE WEEK," she added. "HAPPY 4TH 🇺🇸" As Perry ...

On a recent visit to Good Day New York, current Moulin Rouge cast member Solea Pfeiffer took the stage to perform Firework, the Katy Perry staple sung by Satine in the musical. Watch her performance ...

Benson Boone's 'Fireworks & Rollerblades' sells itself like it's supposed to be campy when it is anything but that.

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