Ganggangsullae
Traditionally, this dance performed without any instruments. Young and old women dance in a circle at night under the moonlight. They go outside in hanbok, traditional Korean clothing, hold hands, make a circle, and start rotating clockwise. The lead singer sings a line. Then, the rest of the people all sing, 'ganggangsullae'. Then the lead singer sings another line, and the rest of the people reply, 'ganggangsullae'. This is probably where the name of the song came from. As the dance continues, the tempo of the song can get faster. They sing about their personal hardships, relationships, and wants. During the dance, the women also play some  games. The ganggangsullae can last until dawn.