Actually, it was Michael.
He wouldn't allow MTV to air any of his videos unless it contractually promised to refer to him as the "King of Pop" whenever his name was mentioned. To this day, no MTV announcer can say "Michael Jackson" without adding, "the King of Pop."
It makes a lot of sense that HE did!
By the way, the mother of those children should be prosecuted. Isn't selling babies a crime any more? Especially selling them to a known pervert (no matter how rich)?