Katy Pery: Get My 'Roar' Costume for Halloween!

Katy Perry rocks a braided ponytail while stopping by the Colette store on Wednesday afternoon (October 2) in Paris, France. The 28-year-old singer told her fans that day how they can get their hands on her look from her “Roar” music video to wear this Halloween! PHOTOS: Check out the latest pics of Katy Perry