The Day the Earth Stood Cool

“Beat it, ducks! I'm not old enough to have food for you! I'm sexy, young and sexy!” 
— Homer Simpson "The Day the Earth Stood Cool" (also known as "The Day the Earth Stayed Cool") is the seventh episode of Season 24.
==Synopsis==
Fred Armisen and Carrie Brownstein from Portlandia guest star as cool neighbors whom Homer wants to emulate, and Marge and Bart find to be pretentious hipsters whose ilk are overrunning the town.
==Full Story==
Homer becomes upset when someone believes him to be Bart's grandfather and worries that he is no longer cool. He then meets Terrance, a cool donut chef from Portland, who is looking for a new city for him and his family to live as he believes Portland has been "played out". When he tells Homer that he sees potential in Springfield, Homer suggests he buy the house next door to the Simpson home (the Brown House), which he does.
The Simpsons meet Terrance's wife Emily, his pet Armadillo Chuey, their daughter Corduroy and their son T-Rex, and get their first exposure to their way of life. While Homer and Lisa are immediately taken with the family, Bart is irritated by T-Rex's negative attitude and Marge is uncomfortable in their presence, particularly of Emily's public breastfeeding. Despite this Marge supports Homer in his desire to fit in with their lifestyle and allows him to combine their yard with the neighbor's one into a "mono-yard" and lets him, Bart and Lisa to accompany Terrance and T-Rex to rock shows, Mexican wrestling, roller derby, Korean gangster films and Modern Art exhibitions, even though she grows concerned that the kids are becoming pretentious. The Simpsons are invited to T-Rex's birthday party, where Marge makes enemies of Emily and her fellow nursing mother friends by refusing to breast-feed Maggie. This prompts the nursing mother friends to attempt to breast-feed Maggie themselves. Meanwhile T-Rex mocks Homer's present and calls him a poser, which angers Bart, and he starts a fight with him. This causes friction between the families (Homer is uninvited to go midnight bike-riding), but when Bart explains himself, Homer chooses to sever all ties with Terrance and his family.
Homer and Marge pressure Terrance and Emily to leave Springfield, but their "humble-bragging" of the town results in more cool people moving to Springfield. Their lifestyle quickly consumes the town; the Tire Fire becomes a Farmer's Market, the Android's Dungeon becomes a Taschen, King Toot's Music Store becomes King Toke's Medicinal Marijuana Center, Springfield Elementary becomes a co-op, and the Kwik-E-Mart turns into Apu's House of Spats. Meanwhile, Bart makes up with T-Rex and invites him to watch TV with him. Excited by the prospect, he abandons his compost-turning duties and joins Bart. The unturned compost, however, catches fire and starts to spread. Homer and Terrance work together to put out the fire using large drums of baby formula Marge keeps in the garage.
Shortly after, the New York Times names Springfield 'America's Coolest City', which makes it played out. Immediately upon hearing this, Terrance, Emily and the rest of the cool people move out of town, much to Lisa's horror.
== Citations==
fr:La Cool Attitude
pl:The Day the Earth Stood Cool
pt:O Dia Em Que a Terra Ficou Bacana
Category:Episodes showran by Matt Selman
Category:Homer episodes
Category:Marge episodes
Category:Lisa episodes
Category:Bart episodes
Category:Incomplete
Category:Episodes named after a film or TV Show
Category:Episodes featuring guest stars
Category:TV-14 Episodes
Category:Episodes showran by Al Jean
Category:Written by Matt Selman
Category:Directed by Matthew Faughnan
Category:Episodes with alternate end credits
Category:Highly Rated Episodes
Category:Episodes with no Opening Sequence
Category:Episodes in which Homer almost loses Marge
Category:History
Category:Film Roman