Not trying to be pessimistic here, but doesn’t it sound slightly unrealistic that this group of people “Fandom Korea”, who I myself don’t know anything about, but I’m assuming is not a large company or anything, is doing an MJ tribute and just so happens to have some of the most powerful and popular artists of today on board?
The Weeknd and Bruno Mars are notorious for their secrecy surrounding their work, as well as their reclusiveness. While The Weeknd does do the occasional feature, now and again, Mars has not for the past 5 years or something, of course excluding his Silk Sonic project, which is a very different thing. Would these two men really work on an independent album?
Would any of these other artists do that? I am not sure about it. It wouldn’t make sense for them to lie about it and I have to investigate the matter some more, but it does sound a bit dubious for the time being.