When Katy Perry began plotting the Prismatic tour - her worldwide jaunt in support of her "Prism" album and the follow-up outing to 2011's candy-coated California Dreams tour - one thing was clear: "We went into this tour knowing the costumes had to be bigger and better than the last," says Perry's stylist Johnny Wujek, who commissioned a gigantic yin-and-yang hoopskirt for the show. After the set list and segment themes were finalized, the two enlisted an all-star cast of couture-house heads and master tailors to bring their vibrant, outlandish ideas to life.

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