All dolled up with nowhere to go, Racquel Zimmermann and Karen Elson star in Lanvin's fiery, fiesty Fall/Winter 2011-12 dance video ad. Along with a pair of male models, the redheaded duo groove to Pitbull's "I Know You Want Me," while sporting Lanvin's chic new collection. Shot by Stephen Meisel, the campaign even included a cameo by Lanvin's acclaimed artistic director Alber Elbaz. We do want you, Lanvin. We really do.