Lanvin's spring 2011 campaign, shot by Steven Meisel, may be our favorite of the season, because there's nothing better than two models fighting. Models Iselin Steiro and Kinga Rajzak claw at each other and drag each other across the floor by their ankles, in a room filled with nice plush cushions and fur rugs that would be great for "movie night." The concept of two women fighting over Lanvin makes perfect sense and actually quite accurately embodies how many ladies and real-life Gossip Girl types feel about the brand. It also capitalizes on the same raw hot lesbian sex appeal that made Black Swan so intriguing. Will spring 2011 become the season of the catfight? Contemplate with our behavioral study of the campaign in the slideshow.