Less than a month after debuting her first collection at New York Fashion Week in February, the 28-year-old singer has announced that she now launches a new line with footwear designer Manolo Blahnik, on a small collection of heels, called Denim Desserts, which will be available on May 5. The four limited-edition designs will only be available at Monolo Blahnik boutiques in New York City, London, and Hong Kong and will retail for $767 to $3,483!