Chelsea Clinton's Wedding -- $15,000 Porta-Potties

Unlike everyone else on the planet, Chelsea Clinton's wedding guests won't need gas masks to do their business in a porta-potty -- because Bill's daughter is renting the swankiest outhouses in town.




The portable latrines have actual porcelain toilets that flush, stereo music and hot running water -- oh yeah, and they're HUGE.

Chelsea's getting between 4-6 trailers for the big day -- with a total cost of about $15,000.

For some reason, it just doesn't feel right when the walls aren't blue...