From pagesix.com:
Wonder why Stella McCartney never took her black satin coat off during the opening of her boutique last Friday? She had nothing under it but a very sexy bra and satin knickers. The highlight of the afterparty at Gaslight was Stella, Gwyneth Paltrow and Usher singing karaoke for the likes of Bono, Britney Spears, Liv Tyler, Debbie Harry, Russell Simmons, Graydon Carter, Christy Turlington, Karolina Kurkova, Helena Christensen and others too fashionable to mention.