Thousands flock to posh Paris flash mob picnic

It's the world's classiest flash mob, when a highly selective group of guerrilla gourmets armed with picnic baskets and linen napkins take over a famous landmark.

The latest "Diner en Blanc" (Dinner in White) took place in Paris Wednesday when some 7,000 people dressed in white from head to toe descended on the swanky Place Vendome to dine al fresco on fine food and wine in the heart of the capital's luxury district.

The venue of the annual event - which has now spread across the globe from Stockholm to Mumbai and Shanghai - was kept tightly under wraps until the last minute.