Michael Jackson was indeed that balding, overweight patient in The Simpson's 1991 'Stark Raving Dad' episode
Michael Jackson was believed to have made a cameo in a 1991 episode of 'The Simpsons' as an overweight patient in a psychiatric ward in the episode titled 'Stark Raving Dad.' The '90s kids were curious about the balding character, who boasted a familiar high-pitched voice and could easily carry a tune when singing. The character even claimed to be 'Michael Jackson.' But towards the end of the episode, the character’s voice dropped tremendously, suggesting the whole thing was a ruse.
Fans have speculated all this time, whether it was really the King of Pop in the cameo. Now it has been finally clarified-- by the man who created the Simpson's himself, and that too on day Michael would have been 60.