Cheoyongmu is a representative Korean mask dance based on the legend of Cheoyong (처용, 處容), a son of the Dragon King of the Eastern Sea. It is also the oldest surviving Korean court dance created during the Unified Silla period. Cheoyongmu has also been considered as a shamanistic dance because it was performed to drive off evil spirits at the end of the year. It is inscribed in UNESCO Intangible Cultural Heritage List from 2009 and enlisted as South Korean Intangible Cultural Property from 1971.