Canadian stunner Coco Rocha is once again the face of Longchamp’s Fall 2012 ad campaign, alongside up-and-coming model Emily DiDonato. For the campaign (pictured, below), lensed by photographer Max Vadukul, the two paraded around Paris carrying the label’s new LM Cuir line bags and wearing the brand’s Fall fur-trimmed leather coats. Here, get an exclusive behind-the-scenes look on set (pictured, above), where Rocha and DiDonato found themselves riding a tandem bike around the Place Dauphine and performing the Charleston near the Pont Neuf. Watch out for the ads on the Web and in print worldwide next month, followed by the September 6 release of the accompanying short film, by Ridley Scott’s right-hand man John Mathieson, on Longchamp.com.