Michael Jackson's estate has gained a revenue close to $1 billion since the pop superstar's death last year, according to U.S. reports.

Reuters reported that the King of Pop sold 33 million albums all over the world, along with the 800,000 copies of albums by the Jackson Five and the Jacksons since his death.

Billboard magazine says that music sales have already brought in approximately $249 million in sales, with a worldwide retail price of $11.62 per unit. The report likewise indicated revenue from international track downloads, global ringtone sales and digital performance royalties.

It is said that a total of $392 million in earnings came from TV and movie projects, including the "Michael Jackson: This Is It" documentary which centers on the hitmaker's final rehearsals for his residency at the O2 arena in London last year, which he reportedly signed to pay his massive debts.

Jackson passed away a few weeks before his scheduled concert, but regardless of the cancellations, the revenue from licensing royalties and retail sales are estimated at $35 million. Some fans declined to make refunds for the tickets and kept them instead as souvenirs.

In the meantime, Jackson's high earning half-ownership of the Sony/ATV music catalog and other music publishind deals have gained the estate around $139 million.