"Shimauta" is Japanese for "Island Song". It came from the Island of Okinawa, right beside the mainland Japan. I really like the song as Rimi sings it, and it's interesting to see it being sung/played in different ways.
Thought: this consumer behaviour is seen in other products as well. Designers often find successful products being used or customized in ways they didn't intend.
Here it is with guitar accompaniment:
The version released on Rimi's CD. It's more pop-ish:
Sung in a cappella. I find it really cool:
I don't know who the singer of this is. But this is in Spanish with a Latin flare:
Lastly, here's a version in Chinese. The name of the song translates to "Sleepless":