CNN obtained video of Michael Jackson and his dancers rehearsing in LA at the Staples Center for his London residency on June 23rd, a mere two days before his death. It's mesmerizing and haunting, to say the lest.
I'm about to pull a Bill Frist, and it may be the energy of "They Don't Care About Us", one of his best songs, but as Consequence of Sound noted, this does add a degree of credibility to the idea that there was reason to believe he was in good health shortly before his passing.