This is one of the most difficult challenges Details has ever posed. Judging from a small portion of a person’s face, you have to guess whether you are looking at an American Idol contestant… or a porn star. Seems easy enough, right? Not really, when you consider that nearly every man and woman from the hit Fox reality show is painted and frosted to look almost exactly like a porn star. Even Elliot Yamin ya’ll… There is one obvious difference here. Most of the girls from American Idol would still be working had they gone into porn. And the good news: Neither Ruben Studdard nor Clay Aiken are featured… though we’d like to submit the picture at right for consideration.