thought this was sufficiently weird...

"The Simpsons" creator, Sam Simon, went on Howard Stern's radio show yesterday and shared a weird memory of when Jacko was a guest star on the animated series, lending his voice to a mental patient with a shaved head. As recalled by Simon, Jackson demanded the script be changed so his character could spend more time with Bart. So Simon gave Jackson a scene where he spends the night alone with Bart in his room. Simon added that during the voice recording, someone gave Jackson a giant Bart Simpson doll — and that when he thought no one was looking, Jackson started to kiss the doll.