Katy Perry's dressing room requirements have been leaked. Nothing out of the ordinary. Smoking Gun says:

The last time I had a dressing room it was for an Orchestra Hall performance, and I got a chair from 1983 and a bottle of water. And I was happy. Then someone made eye contact and spoiled EVERYTHING, so I get this next part:

In the comments people come to her defense, noting, quite sensibly, that all artists in the high firmament have elaborate riders, and the decor requirements are to make her feel relaxed and not stressed out because there's a buzzing green florescent light in the corner, and the glass door on the fridge means it's high end so everything is uniformly cooled, and the request for a "perspex modern style coffee table" ensures that it will be transparent so she can see if she's wearing shoes, and so on. Apparently the ridiculously specific demands ensure that the promoters actually read the rider and do their best to meet the Star's needs. I mean, it's not like she's going to cancel the show if the sandwiches are cut into triangles instead of squares. Forget about the second encore, but otherwise, sure, it's fine.

Then again: if you could come up with something like this, why wouldn't you spell out exactly what you want? As long as they're asking.