He did not just change Pop music - he changed the world of music. There are only a select few that have altered the music time line of history: Billy Holiday, Buddy Holly, the Beatles, Elvis, Frank Sinatra - it can be argued that they each changed the face of the music industry. Michael Jackson changed several industries - Music, video, dance and choreography.
Wiipedia lists his "Occupation" as: "Singer, songwriter, record producer, arranger, dancer, choreographer, actor, author, businessman, financier".
The "voice" of the kid from Gary Indiana was a gift from the creator to an unsuspecting world. The tragedy of the genius of Michael was in his being unable to live comfortably in a world into which he did not fit. He did "fit" on the public stage, creating magic in front of those he was called to - indeed, that was where he stated he was most comfortable...
Did you hear that sound yesterday (June 25, 2009) at about 2:26 pm local time (21:26 UTC)? That was the sound of the musical time line altering once again.
Rev. Ronald L. Taylor