Beyonce just joined the growing list of A-listers performing at the upcoming MJ Tribute Concert in Wales -- but unlike the rest of the line-up ... she'll only be a glimmer of her former self.
Promoters behind the "Michael Forever Tribute" in October just posted the announcement to their Facebook page -- Bey will perform one of her favorite Jackson 5 songs ... via satellite.
Sadly, Beyonce couldn't perform live due to scheduling issues -- but this is almost the same, right? Right?
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