Khon masks comprise part of the costume of performers of the classical dance-drama of Thailand. The dance-drama is also known as "Khon." A Khon performance involves singing, dancing, acting, acrobatics, and music. Stories for the drama are based exclusively on the Ramakien, the Thai version of an Indian epic. The following paragraphs will elaborate on the masks, the types and symbolism, and various aspects of the Khon drama.