Check out this never-before-seen footage of Michael Jackson in rehearsals for the This Is It concert set. Here, he rehearses his performance of one of his signature hits, and one of my favorite MJ song of all time, Human Nature. This should dispel all doubts - Mike still had it, and he was gonna give it to the world one last time. This footage will be included in the This Is It feature film, hitting theaters around the globe October 28. There's some ads on here for it, make sure you click em and check it out.