Pharrell Williams & Louis Vuitton: the era of entertainment stars appointed as creative directors has begun

Pharrell Williams & Louis Vuitton are getting into bed together. This is exciting as it is the first time a fully-fledged entertainment star takes the helm at one of the most prestigious luxury brands worldwide, as its creative director. While musician Kanye West had already broken ground, at sportswear firm Adidas, in his role as artistic director of the uber-successful Yeezy brand, no luxury conglomerate had had the balls to appoint a celebrity as creative director of one of its crown's jewels. Well, ‟Monsieur Arnault”, eternally the groundbreaker, has reached new ground, by doing exactly that at Louis Vuitton, with Pharrell Williams. How does this strategy fit into the inverted pyramid structure of the luxury ‟maison”? Are celebrities at running and maintaining their fashion brands and companies, long term? How are luxury brands tying creative directors to them, exactly, via their super-secretive contracts?