Cult photographer David LaChapelle, known for his often outrageous celebrity portraits, is being honoured with a full retrospective exhibition in Paris. In the world of David LaChapelle, celebrities can be covered in Luis Vuitton tattoos....or they might find that consumer society can be deadly. Elsewhere, wealthy desperate housewives crash their 4x4s into giant cans of cola. But despite the cartoon colours, this is a dark view of humanity, trapped in an obsession with luxury, materialism, and appearances. Illustrations, perhaps, from an economic heyday which is already over