In this Saturday, May 21, 2016 photo, people dance in unison outside of the National Stadium, also known as the Bird's Nest, in Beijing. According to the Guinness World Records website, 31,697 participants in Beijing, Shanghai and four other cities set a new world record on Saturday for mass plaza dancing in multiple locations by performing choreographed dance moves together for more than five minutes. (Photo by Chinatopix via AP Photo)
