Wikipedia says the album it was on, 'Colors' was released January 29, '03.
I don't think it has when it was written though, because there's not an individual wikipedia page for Simple and Clean, sorry.
Here's the link to what I was looking at though-
http://en.wikipedia.org/wiki/Simple_And_Clean
[bananamaker]
Utada Hikaru
Hikaru Utada.
Utada Hikaru Sang Simple and Clean
By Utada Hikaru. Yes
Utada Hikaru wrote Simple and Clean as the theme song for the English version of the Disney and SquareEnix video game "Kingdom Hearts"
Simple and Clean Sanctuary
simple and clean and sancutuary
simple and clean by utada hikaru
Utada Hikaru
Simple and Clean by Utada Hikaru
The theme is called Simple and Clean and is performed by Utada Hikaru. If you can't find it with that information then I guess not.
simple and clean by utada hikaru