Three duets by Freddie Mercury and Michael Jackson, recorded three decades ago at Jackson’s Encino, CA home studio, are set to be released later this year. Queen members Brian May and Roger Taylor are working with producer William Orbit to put the finishing touches on the songs, says Billboard.com.  Brian May has reportedly been working on the tracks for two years, after receiving permission in 2011 to access the tapes. May wrote on his blog, “As for unreleased material with Freddie singing… There are a few items in progress.  We will have something for folks to hear in a couple of months’ time, hopefully.” May also wrote that working on the tapes is “exciting, challenging, emotionally taxing. But cool.”