Katy Perry
Perry is one of those "hard to please" celebrities. Instead of being down to earth and enjoyable pre-show, Perry likes to spend her time alone, thinking, and sometimes meditating. This sounds like a recipe for positivity, but really it's a way to separate herself from others.
Can You Believe It?
Perry's physical requests aren't that crazy. She asks for dried apples, pears, and lightly-salted dried edamame. She likes to get flowers delivered to her room, and her fans have picked up on that, just never send her a carnation (for some reason she doesn't like them).