Some of the money from ticket sales will be going to charity, and Jackson will keep the rest, to pay for the party.
Is Jacko broke?
But some people think Jacko is more than a little bit broke.
The people who used to look after Michael's money claim that he owes loads of people and companies a lot of cash.
If Michael sold Neverland, which comes with its own fairground, it would probably make about £8 million.