Last night should have been Michael Jackson's opening night at the O2 Arena.
Instead, his father Joe revealed Jackson would never have completed the 50-date run, saying he was pushed too hard.
Joe spoke as thousands of fans gathered outside the London venue to pay tribute to the Thriller legend.

Joe, 79, told ABC News: 'The comeback tour was a good idea, but the wrong idea about it; there was more tours added onto it.
'I was worried about his health. No artist can do those many shows back to back like that, and so I knew Michael couldn't do all those shows.
Michael Jackson announces his comeback concerts at the O2 Arena earlier this year
'Michael told me himself. That he agreed to 10 shows. But they went and added all these other shows.'
Jackson's sister LaToya has said she believes foul play was involved in the death, something Joe said he agrees with.
Producers of the show countered Joe's claims, saying that Michael himself was responsible for the extension.

AEG CEO Randy Phillips said he tried to change the singer's mind about the set, but was rebuffed.

'He told me to shove off,' said Phillips.

Jackson's manager Frank DiLeo said that Jackson was not being pushed in the preparation for London.

'He built up his stamina. There would have been no problems, I don't think, with him doing this tour. Nobody was pushing him into it. Nobody was overworking him.'