In reply to S****** Blonde.

You are sadly misinformed. Simple research would tell you that Michael's performance was in the year 1995 which was before the HIStory world tour and after the Dangerous world tour. He didn't perform the Dangerous dance sequence at the 1992/93 Tour. This was freshly rehearsed and choreographed by him and a couple of his backup dancers for that day. He received 3 standing ovations for this piece and an Emmy award nomination for choreography. It also won the award for the Greatest MTV performance ever by a huge margin.
When he showed up with NSync it was last minute and for fun. He was great friends with Justin and wanted to show support. There was nothing 'wrong' with him. He went on to do the widely successful 30th Anniversary special (before or after).

If you think that Madonna kissing Brit and Chris was the most daring and defiant moment in TV history you haven't seen Elvis Presley's first TV appearances. You really ride Madge. LOL