The Estate of Michael Jackson was present at a closed dress rehearsal for the "moment" at 6:30pm on Thursday in Las Vegas -- and we're told everyone watching had to sign a non-disclosure agreement in order to keep the specifics under wraps.
Here's what we do know ...
- Insiders describe the spot as "a world on stage that captures the essence of Michael, all the excitement and magic that is MJ."
We're told it'll make stunts like 2Pac's now infamous hologram performance at Coachella look "like a 1980s video game."
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