Michael Jackson has extended his summer residency at London's O2 Arena to twenty-three shows.

The total, which could still rise, is two more than Prince's run at the same venue two years ago.

Jackson had initially only announced details of ten concerts, but high demand has forced promoters to add more.

Pre-sale tickets for the new dates are available now for fans who received a pre-registration code from organisers.

Over a million people have registered for the chance to buy tickets to the concerts, which will be Jackson's “final curtain call” in London.

In total, the singer is expected to earn upwards of $400m for his comeback, which also includes a 3D film deal.

Michael Jackson's dates are:

• Wednesday, July 8th
• Friday, July 10th
• Sunday, July 12th
• Tuesday, July 14th
• Saturday, July 18th
• Monday, July 20th
• Wednesday, July 22th
• Friday, July 24th
• Sunday, July 26th
• Tuesday, July 28th
• Saturday August 1st
• Monday, August 3rd
• Monday, August 10th
• Wednesday, August 12th
• Monday, August 17th
• Wednesday, August 19th
• Monday, August 24th
• Wednesday, August 26th
• Friday, August 28th
• Sunday, August 30th
• Tuesday, September 1st
• Thursday, September 3rd

(by Jason Gregory)