The illusion of Kate Moss is an art piece first shown at the conclusion of the Alexander McQueen runway show The Widows of Culloden. It consists of a short film of English model Kate Moss dancing slowly while wearing a long, billowing gown of white chiffon, projected life-size within a glass pyramid in the centre of the show's catwalk. Although sometimes referred to as a hologram, the illusion was made using a 19th‑century theatre technique called Pepper's ghost.