Michael Jackson performs at the 12th Annual MTV Video Music Awards at Radio City Music Hall in New York City on September 7,
Kevin Mazur/WireImage

Sony has confirmed that the hackers who broke into Sony's PlayStation network (used primarily for online multiplayer gaming) in 2011, stealing the personal information of more than 70 million people, also got something else from Sony's systems: 50,000 Michael Jackson songs.

Sony, which paid $250 million for seven years of exclusive access to the late singer's catalog, has not released a list of what exactly was stolen, but these songs may include some valuable unreleased tracks, including MJ collaborations with Queen's Freddie Mercury and Black Eyed Peas singer/rapper will.i.am.

The hack could potentially cost Sony millions of dollars in lost revenues if the songs were to leak. Two UK men, 26-year-old James Marks and 25-year-old James McCormick, who were arrested for the hack in May 2011, will stand trial for the entire hack in January 2013. We'd love to check out their iPods!