Hollywood, CA, USA--More than 50,000 people in 300 cities across North America broke out in song and dance at the exact same time , setting the world record for the Largest simultaneous flash mob, during an event organized by ViSalus to promote their Body By Vi fitness program and the Vi-Shape Nutritional Shake according to the World Record Academy: http://www.worldrecordacademy.com/mass/largest_simultaneous_flash_mob_ViSalus_set_world_record_112857.html