Now that the eternally gorgeous Kate Moss has presented her final collection for the UK's Topshop, the supermodel-turned-designer is turning her attention to a new fashion project. Moss reportedly plans to partner with Topshop boss Sir Philip Green on a new line of luxurious lingerie taking on brands such as Agent Provocateur for whom she has modeled in past (above). Contrary to her image as a hardcore party girl, the secret to Moss' design success is attributable to her serious business approach, Green tells Vogue UK. "It was worked at in earnest," Green says of the Topshop collaboration. "In the market today, product is king. You've got to have great merchandise. We've been working at it as a business to build proper ranges with proper work going into the product and Kate trying all the pieces on." That last bit doesn't hurt, of course.