WHAT IS THE MOST UNIQUE SONG THAT YOU HAVE EVER HEARD?

Revolution 9, The Beatles

Valley Girl,  Moon Unit Zappa


As to most "unique" that I actually listen to fairly often. . .

Danko/Manuel,  Drive By Truckers/ Jason Isbell

MacArthur Park, covered by many, Four Tops probably my favorite version

Funeral for a Friend/Love Lies Bleeding, Elton John

Highwayman, the Highwaymen

Two Jimmy Webb compositions on here.  He had a lot of stuff one could fairly call unique.

I'd add:

Nights in White Satin, Moody Blues?  (Didn't see it, but this thread is three pp. long)

Black Diamond Bay,  Bob Dylan

Man on the Moon; E Bow the Letter, REM