Katy Perry
"Extraterrestrial" isn't the only extra part of a Katy Perry tour. Her list of snacks includes unsweetened dried apples and pears and lightly salted, dry-roasted edamame. If you ever send her flowers, too, you'd better not send her carnations. She seems to be pretty hot and cold with what she likes.
Jay-Z
During his 2009 tour, his rider stated that he has seven different dressing rooms. Nobody knows why. He also asked for some "good quality peanut butter" and "good quality jelly" for what would appear to be pretty obvious reasons.
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