Marc Jacobs showed his Fall collection last night, but before we dissect his latest creations, let's indulge in a little friendly style battle with the front-row stars. It's a Marc Jacobs war, and the warriors are Liya Kebede, Leighton Meester, Karen Elson, Fergie, and Vanessa Hudgens. All dressed in Marc's '70s-inspired Spring pieces, all groovy fabulous. One's more funky fab than the next, but which front-row star wins this ultimate MJ battle? You decide!