Isn't it amazing how one song can be sung in so many different style, across different genre and it will evoke different feelings.
I've just came across "Rainbow Connection" (Kenneth Ascher - Paul Williams) arranged by Gil Goldstein, sung by Jane Monheit, with Peter Bernstein at the guitar and Gil Goldstein playing piano and accordion.
It was mellow, fluid, romantic, with the accordion lent Parisian air of the city of lovers. The song easily suggests me the image of couples waltzing under the moonlight (which wouldn't supprise me if the song features as a movie soundtrack someday).
If I didn't search youtube for the music video of that song, I wouldn't know that it was originally sung by Kermit the Frog. And I also found different variations of the song by Jason Mraz, Sarah MacLahlan,etc.
But, I really do prefer Jane/Gil's arrangement. Check it out..