 The new dance is a simplified version of the old dance with socialist elements such as the leader of the holding a sickle instead of umbrella, and it is also known as "struggle yangge" or "reform yangge".Western dance forms became popular in the 20th century, for example Western ballroom dancing became popular in the 1940s in Shanghai nightclubs, and early Communists leaders such as Mao Zedong and Zhou Enlai were also avid Soviet-style ballroom dancers.Previously it would not have been permissible for men and women from respectable families to dance together.