Yangge () is a form of Chinese folk dance developed from a dance known in the Song dynasty as Village Music (村田樂). It is very popular in northern China and is one of the most representative form of folk arts. It is popular in both the countryside and cities in northern China. It is especially popular among older people. Crowds of people will go out into the street in the evening and dance together in a line or a circle formation. Some dancers dress up in red, green, or other colorful costumes, and typically use a red silk ribbon around the waist. They will swing their bodies to music played by drum, trumpet, and gong. More people will join in as they see Yang Ge going on and dance along. Some dancers use props like the waistdrum, dancing fan, fake donkey, or litter. In different areas Yangge is performed in different styles, but all types express happiness. In the 1940s, the Chinese Communist Party launched the new yangge movement where the dance was adopted as a means of rallying village support. The dance was simplified into a pattern of three-quick-steps forward, one-step-backward, pause and repeat. This version of the dance incorporated socialist elements, for example the leader of the dance group would hold a sickle instead of umbrella, and it is also known as "Struggle Yangge" () or "reform yangge". The new struggle yangge had roots in the traditional folk rite yangge that was performed in the rural parts of Northern China prior to the Japanese invasion of 1937. The folk rite was performative and was often associated with New Year’s celebrations, incorporating spirited dance, garish costumes, and loud music. The dance troupe was led by a leader dancer known as santou (umbrella head) and consisted of dancers, ranging from a few dozen to more than one hundred dancers. Simple plays were enacted during the dance, mostly about everyday life in rural China. The songs that accompanied the folk rite were conversations between young men and women about love or congratulatory greetings, and the swinging movements of the dances were generally sexually suggestive.