to this idea that professional opinion does not matter.. It really really does.. We have to put at least some beliefe in a FORENSIC SCIENC!! A Forensic Musicologist are scientists that are trained to find the vocal fingerprint of a person.. They are used in murder cases, and even used to authenticate Osama Bin Ladens voice and surroundings at times..To exclude a Forensic science is like when they tell you this persons fingerprint is on the gun, us saying no its not that persons hands are bigger and would leave a bigger scuff.. Every voice creates specific shapes and waves (its authentic to that person), Even if Jason was able to trick us nd get his voice seemingly identicle it would make different waves and shapes because he would have to put a different effort and push with his voice than the natural singer..Impersonators that would fool us, have to ULTER there voice (making new effects to there shapes) to sound like a person, where as the original speaker would fallow the same shaped pattern and overlay..And a voice creates two sounds when we speak.. The sound prominant that we hear and second an overtone that is an octave higher (That the human ear does not pick up) If a FORENSIC musicologist states its Michael Jackson stating it is Michael Jackons fingerprinted voice, than we have to consider that.. And that alone is a bold statement, because if this was a crime case, the finger print is there.. case close.. all I am saying is we have to CONSIDER!In addition, the multiple producers that have worked with Michael, whos sole job was to hear his voice, tell him when he's off.. part of his job would to be a basic critic to his voice.. that persons ear should matter aswell..just a thought!