Katy Perry’s onstage costumes are a masterclass in camp. Since popping off in 2008, she’s worn the most whimsical pieces, ...

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

In case you forgot, Katy Perry is one to pull out ... contained a hidden grey layer. The skirt's corset details were also in the back, allowing Perry's backside and black thong to be the star ...