FashionNetwork : When did art and fashion start working together? Pascale Cayla: In the 1980s and 90s, luxury brands carried a rather traditional and institutional image. Then, in 2001, there was a deflagration. For one of its most memorable runway shows, Louis Vuitton invited American artist Stephen Sprouse to collaborate on a collection of bags, which saw bags customised with fluorescent-coloured tags, shaking up everything sacred about the brand: the bag, the leather and the logo. With this stunt, Louis Vuitton woke up to the times.

FNW : What do you mean by that?PC : In terms of image, contemporary art allows us to understand our times, cause it speaks of creativity, innovation, impertinence and disruption. Everything a business needs…