Yes, he looks thin, but he has had times when he was really thin before. Go back and watch the "Beat It" video or the Pepsi commercial where the little kid imitates him. I can remember when they came out thinking, "My God, he's skinny". To me he looked as thin then as he did in this clip. Of course he was younger then, so his face didn't look so thin. Anyway, from what I have heard about the investigation into his death, he died from a drug overdose given by his doctor, not because he was too thin or frail.