From Jesta on twitter
Kids, hologram technology (as I am aware) does not actually use authentic video. Most times it is a computer-generated image Or something specially shot for the illusion i.e. against a green-screen.
I don't want to keep going on about hologram technology, so I'll just say this: there are pre-requisites for ANYTHING like a hologram.
Most CGi (video game/film, mostly) models incorporate motion capture technology to create realistic movements. Holograms are no exception.
So for a flawlessly authentic hologram, one would need either an unedited full-body shot of one's entire performance, or MoCap files.
In the case of Michael Jackson, there was only ever one time where he performed with motion capture nodes, and that was in "Ghosts".
Tupac's hologram almost certainly used motion capture from someone else with CG skin. It's the norm for things like this.
So yes, the MJ hologram in "Michael Jackson ONE" was made purely as artistic license for the show and isn't sourced from footage.
No doubt if MJ was alive, he would've shot the necessary footage to create a hologram i.e. against a green-screen with MoCap nodes.
Otherwise, the technology just doesn't exist at this time to take someone out of Pre-HD footage flawlessly and create a hologram. Especially someone who moved the way that MJ moved.