"Unknown Jae-R Collaboration" is a placehoder name for an unreleased song by Michael Jackson written with a Norwegian rapper, Jae-R. It's unknown what project it was intended for.
Background[]
Jae-R is known to have visited Jackson at an unknown time. Considering the sources for the song originate from the early 2000s, it can be assumed the collaboration took place at that time.
The King of Pop would've been presented to a demo made by the rapper. Jackson is confirmed to have recorded his vocals for one of them, however the title is currently unknown.[1]