Ne-Yo
Ne-Yo always requests tons of bottles of alcohol for his green room. But, he asks, very specifically, for a personal bottle of Kettle One vodka. He doesn't drink it though, he only uses it to clean stuff around the venue. He's a pretty weird dude.
Britney Spears
When Britney Spears played at the O2 arena in London, she requested a framed picture of Princess Diana be hung in her dressing room because "Britney loves the monarchy." She also asked for "some" McDonald's cheeseburgers, but without the bun. We think that this is pretty bad, but at least she didn't ask for hotdogs with no buns.