[Amore]

Another good thing about this concert is that a bunch of musicians who were going to perform with Michael Jackson dropped out of HIS concert in favor of playing with McCartney. In addition to the unstated reason of the feud between McCartney & Jackson, another supposed reason was a concern that Jackson would make the concert all about himself.

[Howlin]

In addition to the unstated reason of the feud between McCartney & Jackson

Could it be that Jackson bought all the rights to McCartney's songs and won't sell them back?