What is a rider? Vice.com explains it thusly:
A rider is a contractual proviso that outlines a series of stipulations or requests between at least two parties. While they can be attached to leases and other legal documents, they’re most famously used by musicians or bands to outline how they need their equipment to be set up and arranged, how they like their dressing room organized, and what types of food and beverages they require. Anyone who’s seen Spinal Tap knows these requests can be extremely outrageous and unreasonable.
Here's page one of Iggy and the Stooges' rider. There are 17 more and as you'll note from page 1, there are LOLz aplenty. It's a museum piece of impertinent genius. See the whole thing at The Smoking Gun.