Katy Perry loves to play dress up, as evidenced by her elaborate performances and her Halloween costumes. When it comes to Katy Perry's Halloween costumes, the pop star enjoys going the full nine yards, donning all sorts of ridiculous outfits for outrageous results. Depending on the year, she may show up as a classic monster, a food dish, or even a famous politician, adopting their looks as easily as she adopts cultures that aren't her own to begin with. You may not know this about Katy Perry, but her Halloween track record left behind some impressive costumes. Face it, you never thought of being a Hot Cheeto until you saw Katy Perry do it.