"Kimigayo" is the national anthem of Japan. The lyrics are derived from a poem written in the Heian period, and the music was composed in the late 19th century. The anthem expresses wishes for the longevity and prosperity of the emperor, symbolizing the unity of the nation. The anthem is often played at official events and ceremonies, including national holidays and sports competitions. While "Kimigayo" is one of the world's shortest national anthems, its melody is recognized for its solemn and dignified tone, reflecting the cultural heritage of Japanese society.