Nope, not MJ... if you look closely, you'll see that the ghost is also reflected off the extremely shiny floors... Clearly it is Billy Mayes' ghost showing off the new Citris-Shine floor-wax.

Love it. Fun to step through this type of analysis of such a masterpiece. That said, I must admit I have a pet peeve against looking too deeply for meanings in things. Shiny floors do not necessarily, intentionally reinforce a mirror theme; they just happen to be shiny in a fancy decorative hotel. Red floors may not foreshadow a river of blood; they're just red because that's what color they are in the shooting location. Cameras following behind actors is not so uncommon as to give it some special meaning and tie it symbolically to driving through the mountains. A ball bouncing off a wall isn't foreshadowing an axe coming through a door (well, okay, then again maybe that one is legitimate...)

The rest is here: http://www.videosift.com/video/An-In-Depth-Analysis-of-The-Shining-Part-2