Click image to enlarge.

With Stella McCartney and Kate Moss currently visiting the States, you know that it's for a very good reason. While Kate was busy promoting the latest Agent Provocateur line over at New York's Milk studios, her pal McCartney was also busy entertaining a slew of celebs at her special screening of The Party, an old 1968 Peter Sellers film, to promote her brand. A string of stars turned out including Nicole Richie, Angie Harmon, Charlize Theron and even our own Mika. Everything had a retro theme, even right down to the invites.

[Images: Getty]