Thanks for the definitions, I'm now duly informed and I can't help but think that maybe Gokey is Kara's douchebag? Then at least he'd serve some purpose, no?
Did you by any chance misplace one letterin the headline? Shouldn't it have been "Kara DioGuardi is a Living Nightmare"? In either case, she makes me scream in horror (and apparently, I am not alone).