system
A chat on subreddit /r/NoStupidQuestions
human
My friend went to Seoul and had a cab driver who got really excited seeing an American and played this song full blast while trying to talk about John Denver.  I went to Seoul a year later and am pretty sure I got the same cab driver.
gpt
I think someone once told me it was heavily featured in a Ghibli film so a whole generation of people have a connection to it.