<P> Al Jean and Mike Reiss wrote the episode while Rich Moore served as director . Michael Jackson guest - starred in the episode as the speaking voice of Leon Kompowsky . For contractual reasons , he was credited as John Jay Smith in the closing credits , and his role in the episode was not officially confirmed until later . Jackson was a fan of the show and called creator Matt Groening one night offering to do a guest spot . Jackson pitched several story ideas for the episode and wrote the song `` Happy Birthday Lisa '' that is featured in the plot . He also stipulated that he would provide Kompowsky 's speaking voice , but his singing voice would be performed by a sound - alike ( Kipp Lennon ) because he wanted to play a joke on his brothers . The episode contains references to many aspects of Jackson 's career , with Kompowsky singing portions of the songs `` Billie Jean '' and `` Ben '' . </P>
<P> Al Jean and Mike Reiss wrote the episode while Rich Moore served as director . Michael Jackson guest - starred in the episode as the speaking voice of Leon Kompowsky . For contractual reasons , he was credited as John Jay Smith in the closing credits , and his role in the episode was not officially confirmed until later . Jackson was a fan of the show and called creator Matt Groening one night offering to do a guest spot . Jackson pitched several story ideas for the episode and wrote the song `` Happy Birthday Lisa '' that is featured in the plot . He also stipulated that he would provide Kompowsky 's speaking voice , but his singing voice would be performed by a sound - alike ( Kipp Lennon ) because he wanted to play a joke on his brothers . The episode contains references to many aspects of Jackson 's career , with Kompowsky singing portions of the songs `` Billie Jean '' and `` Ben '' . </P>
who did the voice of michael jackson on the simpsons
who did the voice of michael jackson on the simpsons
Michael Jackson
Michael Jackson