This California gurl kissed a girl and she liked it! Sweet and talented, Katy Perry managed to catch the eye and surround herself with millions of fans! Regardless if you have been fascinated by her looks or know all her songs by heart, a costume inspired by her is always an original and spectacular disguise. Costumeparty.com offers you a large selection of famous Katy costumes and costume accessories for a perfect Halloween or birthday party look. Check them all in the section below!