Forgetomori posted this video of the George Foreman and Muhammad Ali fight from 1974. He notes that during one second of the video (between 5:45 and 5:46) something that looks like the head of Michael Jackson, circa 2000, appears.

It could be a hoax, a bizarre face added digitally and recently to the scene, as what we assume would be the black hair around the face is actually transparent. On the other hand, there are some things that interact with the image.....

Via:

http://forgetomori.com/2009/paranormal/ghosts/michael-jackson-ghost-haunts-muhammad-ali/

http://www.boingboing.net/2009/04/17/michael-jackson-face.html

Crazy. Who knew Mike was at the Rumble in the Jungle?