According to Wikipedia, 'Flash Mobs' first got their start in Manhattan at Macy's Department Store. Bill Wasik, who was Harper Magazine's senior editor, organized the event just to poke fun at hipsters. The focus was all about buying a 'love rug.' You'll find the story here. But the cultural phenomena has morphed into many different things, among my favorites is the singing and dancing Flash Mobs.

Recently, a group calling themselves the 'Lifemark Flash Mob,' made up of 65 to 80 year-olds, staged a dancing event at a mall in Auckland, New Zealand, with the purpose of bringing attention to more adaptable and accessible housing to the aging population.

The silver-haired girls and guys still have moves. Check it out: