Calvin Klein has always been a fan of drugged-up stars, but this morning's announcement that the designer picked Eva Mendes to star in his Spring `09 fragrance campaign makes him look less like a "fan," and more like a druggie Obsessive (uh, get it ?). Klein, of course, is not only the man behind those heroin chic denim ads featuring (ahem!) Kate Moss in the 90s, but he's also been in and out ...