Katy Perry has taken Paris Fashion Week by storm. The pop star has stepped out in four very different styles, ranging from sweet to sexy. And for someone who has blue hair (which isn't particularly versatile), she's managed pull off each look pretty successfully!

On Thursday, Katy visited some friends in a sweet seafoam green Vera Wang dress. Well it wasn't that sweet; it did feature a completely sheer skirt!

She showed even more skin that evening in a sparkling Balmain mini at the Maison Du Caviar party. A safety pin barely kept her bust from popping out.

On Saturday, Katy hit up the Viktor & Rolf show in a coat from the collection and a punk hairstyle that we've never seen on her before.

Monday brought out yet another style, this time leather-clad look for the Yves Saint-Laurent show.

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