Seventy-nine-year-old Wang Baorong, dressed in military style clothes, dances with a man as she performs square dancing at a park square in Beijing, China, April 9, 2015. Chinese-style square dancing is running circles around other hobbies for the elderly, with millions taking to parks and plazas across China, swivelling their hips and rolling their arms – but it's not to everyone's liking. (Photo by Kim Kyung-Hoon/Reuters)

Women perform square dancing at a park square in Beijing, China, April 13, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Women perform square dancing at a park square in Beijing, China, April 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Women dressed in military style clothes perform square dancing at a park square in Beijing, China, April 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A man and a woman cast their silhouettes as they perform square dancing at a park square in Beijing, China, April 13, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Women perform square dancing at a park square in Beijing, China, April 13, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Seventy-nine-year-old Wang Baorong, dressed in military style clothes, performs square dancing at a park square in Beijing, China, April 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Seventy-nine-year-old Wang Baorong (C), dressed in military style clothes, and other participants perform square dancing at a park square in Beijing, China, April 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

Women perform square dancing on a square in Beijing, China, April 14, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A woman dressed in military style clothes performs square dancing with a man at a park square in Beijing, China, April 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)