Tonight on Conan, Charlie Day talked about the writing process behind It's Always Sunny in Philadelphia and a fake script (about Frank being repeatedly raped in prison) they sent to Danny Devito on April Fool's Day.

Charlie Day's portrayal of Green Man in an episode of It's Always Sunny in Philadelphia years ago has turned into a phenomenon. Spotted at sporting events, on the streets, on weirdos... do these people realize the significance of Green Man?

Ever since Always Sunny's Charlie tripped on acid, broke out his Greenman suit and danced around a parking lot, full-body spandex suits have taken a life of their own. Somewhere along the line they evolved into a full-on sexual fetish.