Barcelona , Spain ( CNN ) -- Sony has announced a tie-up with the estate of Michael Jackson , allowing them to use his music to promote the release of a new smartphone . But the announcement left some Jackson fans unimpressed . The previously-unreleased track `` Slave to the Rhythm '' featured as part of a 90-second video shown to journalists at the launch of the Xperia Z2 phone at the world 's biggest mobile trade fair in Barcelona , Spain , on Monday . But fans were quick to point out that the song has been around for a while : . A version of the song featuring Justin Bieber surfaced online in 2013 , but the Jackson estate said the recording was not authorized , and insisted it be removed from YouTube and other sites . A version of the song leaked online in 2010 following Jackson 's death in 2009 from `` acute propofol intoxication . '' In a statement , Jackson 's estate said : `` The Estate of Michael Jackson and Epic Records are very excited about the partnership with Sony Mobile announced this morning at the Mobile World Congress in Barcelona . `` We are thrilled with the use of the new solo Michael Jackson recording , `` Slave To The Rhythm , '' which is featured in the 90 second online spot for the new Xperia Z2 phone . ''
Sony to team up with Michael Jackson estate to use music for new Xperia Z2 phone . Michael Jackson recording , `` Slave To The Rhythm , '' will be featured in 90 second online spot . Fans unimpressed by Sony 's move .