That's not true. He completely changed Whatvere Happens song. Listen to demo, it sounds different. Yes, vocally he just sang what he had to sang. But musically he made it much much better. Also, let's not forget, that 60% of songs were co-writen by him. First 3 bangers are pure Michael Jackson, even so he didn't write it all alone. We can hear his beatboxing in every song. As was stated few times ago, Michael made structure for songs and Jerkins just brought him new sounds. Michael Jackson was really into that album. Because it was really exciting project for himWell,yeah,to an extent or another.
But,having listened to the said writers' demo as well,I can't help but feel that the song was,at least,80%
But that is not the case for "Whatever Happens",actually (nor for most of the other Invincible tracks really,if you think about it..for example "Butterflies"). In that era he would simply cover the tracks as they were written,put his name on it and suggest that he was somehow involved in any part of the creative process..while that may have been impressively far from the actual truth..
(I'd still say that "Heaven Can Wait" is an exception to this though,as he at least inserted some of his signature screams/ad-libs at the very end of it,but still)
Michael didn't write Tabloid Junkie all alone, but it was his song, lol. Just like most songs from Invincible album