Sony has confirmed that a 2011 attack by hackers has resulted in the theft of the entire Michael Jackson catalogue - including unreleased tracks.
The BBC reports Sony's PlayStation Network was hacked in April, 2011 and the company admitted that the personal details of more than 70 million people may have been taken.
The hack of Michael Jackson tracks is said to have taken place soon after that but has not been revealed until now.
The singer, who died in June 2009 at the age of 50, had recorded unreleased duets with artists ranging from the late Freddie Mercury and Black Eyed Peas singer will.i.am.
The Sony Music site also hosts tracks by other artists including the Foo Fighters, Olly Murs and Avril Lavigne, although it is still unclear whether they are affected.
Two men from the UK have appeared in court to deny computer misuse and copyright offences.
James Marks, 26 and from Daventry, and 25-year-old James McCormick from Blackpool, were arrested last May and are due to stand trial in January 2013.
Michael Jackson
Michael Jackson – Beat It
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