Nick Knight's Lady Gaga editorial, featured in the September 2010 issue of Vanity Fair, alongside previously unpublished images.

Watch Lady Gaga in action during a shoot for Vanity Fair in this playful behind the scenes fashion film.

The irrepressible Lady Gaga is captured on set during Nick Knight's shoot for the September 2010 issue of Vanity Fair.

Nick Knight shot Hollywood legend Brad Pitt for the June 2004 issue of Vanity Fair, ahead of the release of Troy.

Brad Pitt plays himself in this 2004 Vanity Fair shoot by Nick Knight.