Michael Jackson is planning a huge comeback event to be staged in London, it was reported today.

The singer has been in secret talks to arrange a 30-date residency at Dockland's O2 Arena this summer, which could secure the star up to £1.5million a night.

Dubbed "the greatest comeback in history", organisers AEG Live said they were looking at putting on the concerts at the 20,000-seat venue in July.

They said they believed that Jackson fans from all across Europe will travel to London to see him perform.

A source said: "It will be the greatest comeback in the history of pop and there would be no problem selling out the O2 every night.

"No-one is concerned about his reputation and people don't feel it is a risk. Organisers are confident people will come from all over the world to see him."