Michael Jackson's mom has personally reached out to some of the biggest 音乐 stars in the world in the hopes of getting them to perform at the big MJ tribute 显示 in October ... but only ONE of them is a definite YES ... TMZ has learned.
Sources connected to the 音乐会 tell us ... Jay-Z, Kanye West, Cee Lo, Chris Brown, Justin Bieber, Christina Aguilera, 亚瑟小子 and Bruno Mars have each received an invitation (pictured above) from Katherine Jackson ... asking them to perform 1 或者 2 of their 最喜爱的 MJ songs in Cardiff, Wales on Oct. 8.
Katherine promises each 星, 星级 who signs on will be provided...
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