Customers at l'Atelier Joël Robuchon pay tribute to chef Joel Robuchon, the world's most-starred Michelin chef who tore down kitchen walls to give diners new insights into the art of cooking, has died at 73. In Paris, customers at one of his restaurants, "L'atelier Joël Robuchon", paid tribute to one of the "chefs of the century". IMAGES AND SOUNDBITES