Tatsurou Yamashita, who is recognized globally as one of the most influential musicians and greatest singers of all time, is a singer-songwriter and record producer. In popular music, he holds a significant position. His song "Christmas Eve," which was first released on his album Melodies in 1983 and later as a single in 1986, has become the standard Japanese Christmas tune. Yamashita is also Mariya Takeuchi's husband and producer.