CHINESE STREET DANCE CRAZE SHAKES UP THE WORLD

Joyful and exuberant, new phenomenon goes viral, provides better understanding of nation's pop culture

When YJIN, a leading dance influencer in South Korea, saw the kemusan dance challenge trending online, she immediately decided to film videos of her own.

With her sharp and fluent moves, the videos have received more than 20 million views since being posted in mid-December and are among the most popular in South Korea.

Kemusan means "subject three "in Mandarin, and there are several theories on the origin of the name.