Nat King Cole and the song is called Nature Boy. (:

I don't know the original song but I know it's also in Moulin Rouge lol. =P

Nature Boy by Nat King Cole from 1948 http://www.youtube.com/watch?v=Iq0XJCJ1Srw also done by Frank Sinatra and Bobby Darin

Of course. It's called Nature Boy. It's old too. I love that song. I'll find it for you just a sec. http://www.youtube.com/watch?v=yRcn2YXaHoo Nat King Cole recorded it in 1948 and it was supposedly written by a homeless man that Nat got wind of.

Hey! I get to comment on one of my favorite songs. I also use the "Greatest thing you'll ever learn......" line as my favorite quote of all time. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ OK, what I'm about to say does not really negate what anybody has said. It's just more clarification as to who the song is about. I will try to keep this as brief as possible. The song is about a man who goes by the name Gypsy Boots. I first met him in 1975 when he visited Maharishi International University. [It's a credited university composed of 100% transcendental meditators]. I then ran into him many times in Southern California. He MAY be somewhat autistic, but I never had that thought while talking to him. One thing is true. He is far from a "normal" person. Although it was hard to have a regular conversation with him, he was always coherent. He just wants to speak his wisdom, which is the higher Spiritual knowledge [not religious knowledge. Huge difference]. As indicated in the song, he did always talk about LOVE. Also as indicated in the song he was definitely not shy, at least in the 70s, 80s and 90s when I knew him. The reason I met him so often was because he always gravitated towards places and people that would appreciate his wisdom. So one could run into him at popular health food stores or annual health conventions etc. Since leaving S. Cal. 16 years ago, I have not seen him. At that time, he was healthy and highly energetic for any age let alone his advanced age, probably because he was 100% vegetarian [as I am]. OK I guess I've said enough. If anyone has any questions, feel free to ask me.

The song is Nature Boy. Nat King Cole did a famous version. Celine Dion did a version in her Las Vegas show when I saw it. Do not know who composed it.