A high-tech Coca-Cola vending machine in a South Korean mall dispenses free Cokes to patrons who demonstrate their dance moves.
When people pass in front of the vender, Korean boy band sensation 2PM challenges them to a dance-off. The more difficult dance moves mastered by the thirsty contestant, the more bottles of Coke he or she is rewarded.
The machine records the action and allows customers to share their dance videos with friends on Twitter, Facebook and Me2Day, a South Korean social networking site.
