Happy 20th anniversary to a series that has defined us all in some way, shape, or form. To you, what world and theme first come to mind whenever KH1 is brought up? :
The 8 Greatest Kingdom Hearts Songs - KeenGamer
Simple and Clean - Kingdom Hearts Wiki, the Kingdom Hearts encyclopedia
Kingdom Hearts Simple and Clean Instrumental - YouTube
SIMPLE AND CLEAN - KINGDOM Orchestra Instrumental Version- - song and lyrics by Hikaru Utada | Spotify
Simple and Clean - Kingdom Hearts Wiki, the Kingdom Hearts encyclopedia
Hikari 光 (Simple and Clean) Orchestral Instrumental Version - YouTube