Quan Ho is a traditional form of folk singing originating from the northern regions of Vietnam. It is characterized by its call-and-response style, where singers engage in a playful exchange of verses. The songs often express themes of love, nature, and daily life, reflecting the culture and traditions of the local communities. This unique art form is typically performed during festivals and special occasions, often accompanied by traditional instruments. In 2009, Quan Ho was recognized by UNESCO as an Intangible Cultural Heritage of Humanity, highlighting its significance in preserving Vietnamese cultural identity and heritage.