According to reports
"The estate has made around $900 million in cash since Michael's death. This is an incredible amount. No other artist has ever made that much since they died. It should ensure Michael goes down in history as the greatest artist of all time."
Record sales soared as soon as news of Jackson's death was announced on June 25 last year.
More than 415,000 albums were sold in the first four days in America alone - and 2.3million songs were downloaded across the world.
In the previous year Jackson, who was struggling to pay off $500million of debts and was selling off his beloved Neverland Ranch, had sold just 10,000 records, got cash from 37,000 downloads - and made an estimated $19million.