Depicted from Wikipedia, "Merry Christmas Mr. Lawrence - FYI" sang by Utada Hikaru, the lyrics reference to the movie as well. Since I'm no fan of old movies, especially those in the 80's - 90's (of course, I still like P. Ramlee's movies), it kept me curious to want to watch the movie.
The main theme music was composed by Sakamoto Ryuichi, a very soothing song and was ranked among the best in his music. Some remake versions, copied-paste here:
"There is a 12" vinyl remake version on the famous Italian record label DISCOMAGIC named "Clock On 5 - Theme From Furyo."
A cover version of "Forbidden Colours" is included on Hollywood Mon Amour, a collection of songs made famous by their inclusion on soundtracks of movies made in the 1980s, rearranged by Marc Collin of Nouvelle Vague with Nadeah providing the vocals.
In 2000, a re-mix of Ryuichi Sakamoto's Merry Christmas Mr. Lawrence called Heart of Asia was released in Europe by dance group Watergate.
In 2008, Indonesian singer Anggun used a sample from this song on "Hymne a la vie" -- a track on her album Elevation.
In 2009, Japanese-American pop singer Hikaru Utada used a sample from this song on her second English-language album This Is the One, entitling her song "Merry Christmas Mr. Lawrence - FYI.". The lyrics reference to the movie as well.
The song is also used (in edited form) as the theme song to the...