She is one of the most famous faces in the world, renowned for her Gallic charm, elegant style and classical beauty. But it seems that the First Lady of France is never happier than when she is strolling through the streets of Paris – incognito, that is. In fact, Carla Bruni even admits donning a special disguise and affecting a ‘funny voice’ to avoid being spotted, much like Marie Antoinette was said to have done during the French Revolution. Ms Bruni, 41, said her life as the third wife of President Nicolas Sarkozy sometimes made ‘normal’ behaviour quite impossible, leading...