Unreleased Michael Jackson music, recorded between 1989 and 1991 during the Dangerous album sessions, has been discovered on cassette tapes. Twelve complete songs and additional snippets were found, some familiar to hardcore fans, others entirely new. One track features Jackson rapping with LL Cool J, a genre he never fully explored in his official releases. However, the Jackson estate has confirmed possession of the master recordings and shows no signs of releasing this newly found material to the public, despite the discoverer's attempts to alert them. The estate's decision sparks a debate about the release of unreleased music from deceased artists.