At the end of his life, Michael Jackson was asset rich, but cash poor. The King of Pop was nearly $500 million in debt.  Today, his estate has grown by nearly $1 billion, as MJ mania reaches a younger generation. Six years on, the moonwalker continues to release hits and perform from beyond the grave:

To understand how this happened, we spoke with Zack O’Malley Greenburg, senior editor for Forbes and author of “Michael Jackson Inc.“