makes Bart complete the quiz because he is too lazy to do it himself. Bart ticks "yes" to all the questions, which ask if Homer hears voices, is quick to anger, or wets his pants. When Burns and Monroe see the results, they send Homer to a mental institution, where he is committed after an ink blot test image that resembles Bart triggers his temper. Homer is put in a cell with a large white man who introduces himself as Michael Jackson. Being unfamiliar with the real Michael Jackson, Homer believes and quickly befriends him. Marge visits Homer at the mental hospital and convinces his doctors that he is not insane when they realize Bart is real and not a figment of Homer's imagination. When Jackson reveals that he is in the asylum voluntarily, Homer invites him to stay with the Simpsons. Despite promising to keep it secret, Bart blabs about Jackson coming to his house; soon all of Springfield gathers outside to see the pop star. When Homer introduces Jackson, the townspeople realize he is an impostor and leave, angry at Bart. In his excitement over Jackson's arrival, Bart fails to acknowledge Lisa's birthday. After overhearing a distraught Lisa composed a letter disowning her brother, Jackson convinces Bart to let him help heal their rift. Together they write and perform a song for her called "Happy Birthday Lisa". The song thrills Lisa, who declares it the best present ever. Jackson then reveals that his real name is Leon Kompowsky, a bricklayer from Paterson, New Jersey. He explains that he had been filled with anger most of his life, but found solace when talking in Jackson's voice because it made people happy. Leon bids farewell to the Simpsons, singing Lisa's birthday song to himself in his normal voice. Production "Stark Raving Dad" was written specially for Michael Jackson, a fan of the show, who had called Groening one night and offered to do a guest spot. The offer was accepted and a script was written by Al Jean and Mike Reiss, based on an idea pitched by James L. Brooks. Creator Matt Groening and co-executive producer Sam Simon also contributed significantly to the writing. In an early version of the script, Homer decided to take his alcoholic friend Barney Gumble in for rehab, but while there Homer began acting crazily so the doctors assumed he was the one to be