Michael Jackson's health was not good enough to perform even 1 show during that period, let alone 50 shows.Was MJ's health good enough to perform 50 shows then?
Epic Records announced via their website (in January 2002) that the 'Invincible' album by that time had sold 5.2 million copies worldwide.MJ stated it sold 10 million within the first 12 months.
But, from that point onwards, sales of that album remained rather stagnant.