Michael Jackson’s songs and albums went to the top of the charts in the days and weeks following his death –and there may be plenty more hits to come, if his rumored plethora of unreleased songs find their way to the public. Since his death, rumors have surfaced about a mountain of unpublished material from the King of Pop, including recent collaborations with artists such as will.i.am and Akon, as well as unused tracks from studio sessions dating back to the 1980s.