Calvin Klein plan to celebrate the 25th anniversary of their underwear brand with a star studded party during New York Fashion Week.

The bash will take place in the city on September 4th and will be hosted by Djimon Hounsou and Hilary Swank.
Djimon Hounsou is the face (and body!) of the brand's latest underwear line, Steel, which will be launched on the night. Hilary Swank appeared in the CK ad campaigns in 2004.

Others expected to be present include CK models from the past and creative director Francisco Costa, who will be honoured for his contributions to the label.

After the party Kate Bosworth and Julianne Moore will welcome guests to the private dinner in Costa’s honor at Ian Schrager’s much-anticipated Wakiya restaurant at the Gramercy Park Hotel.