Global retailer H&M is an excellent case study in creative brand marketing and campaigns that engage fashion lovers (and the media) on the web. Case in point, earlier this week H&M posted a series of 23-second interviews on its YouTube channel teasing an uncomming designer collaboration. The video showed only a designer's body with his or her face hidden sparking speculation of who it might be among fashion lovers across the web. Today’s WWD reports that the mysterious partnership will be with Lanvin's creative director Alber Elbaz. The H&M X Lanvin collection will hit stores worldwide on November 23rd, with a preview on November 2nd. I may go fashion camping (my seven year old's term for waiting in line for a store to open) for this one.