Has Jackson ever done a political song like BTWN? All I can think of is his "save the worlds children/rainforest" songs or music videos asking the world to leave him alone.
I wonder if the "real" duet version, whoever did it, got yanked because of the politcal ramifications of thie songs - and the fact it was going to be one of Bowie's "comeback" singles. If you were Kravitzs record company, and had the "Are You Going My Way" waiting to be released, would you want your artist on a 'hot potato' single?
You also think Bowie would work with MJ a decade after 2 naff singles with McCartney and a duet with Mick Jagger?
Also indirectly related is around this time MJ did a full cameo on the Simpsons(uncredited) when Homer went to the insane asylum.