yes they were not very nice to MJ, he was on schedule and in time to the session but
when he joined the group all they had to say about that moment was "silence, weird silence"...
Can´t understand why, I think Michael loved the Simpsons and was happy to be in it,
all the speakers are funny people, Michael was funny too, can´t imagen why Michael was again so defensive and silent. I think it was his well known insecurence with different or unknown people.
It was strange to hear that Michael was there but had somebody with him to sing his song.
Maybe we payed not enough for the singing MJ, only the talking MJ, that was the comment they had on this situation.
But Michael actually took his time to write this song, this shows that it ment something to him so it is strange that he did not sing itself, but it is also not OK from the Mr. Burns Speaker not to mention that Michel took some time to write the song...
This interview from Conan o Brian with the two main speakers from the simpson is so funny but this thing about MJ always leave a bad taste