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 Island says 160m including TEOM for Mariah- so that's about it. Music Box can't possibly have sold 23M outside the US. This would mean 17M outside Europe and the US- never happened in the history of music (not even Thriller has such sales outside these two markets, and it went #1 basically everywhere for months, a lot more than can be said for Music Box) It was a huge hit, but not to that extent. Adding all the markets in teh world apart from a tiny handful (0.005% of teh world or so) Music Box adds up to about 20M or so