"Weird Al" Yankovic
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Weird Al Yankovic appears in the episode '3 gays of the condo.' After Homer moves out and into a house with two homosexual men named Grady and Julio, Marge hires Weird Al Yankovic to write a love song for the two of them that succesfully persuades Homer to come home. Yankovic also sings a song to the same tune, but with different lyrics, during the credits.