Sober decor and design thought out by Jean Roch, “Tulip” chairs by Eero Saarinen and Keith Haring and Basquiat on the walls to name but a few: welcome to the Gioia, the last of the prominent Parisian restaurants, straight out of Saint-Tropez. It’s hard to believe that this cotton-soft atmosphere contains the dance floor for the adjoining VIP Room, over which plunges an immense, panoramic glass roof. Already a regular, Karl Lagerfeld himself has put together and added to the menu a salad bearing his name.