Luna Marie Loud is one of the main characters from the Nickelodeon animated series The Loud House. She is the third-oldest of Lincoln Loud's ten sisters, known for her passion for rock music, which she developed when she attended her first concert during seventh grade. Aspiring to become a rock star, Luna is often seen practicing with her Logan V-80 Shredder guitar or listening to rock music, and frequently quotes lyrics from famous songs. And like her older sister Leni, she is also caring and supportive of her siblings.
As one of the show's main characters, Luna naturally has a prominent role in the Christmas episode, "11 Louds a Leapin'". Her subplot in the special finds her trying to write a new Christmas song on Christmas Eve. Unfortunately, she suffers a case of writer's block in doing so, as the lyrics she initially comes up with all relate to wanting and receiving presents. Later, Lincoln tells all the sisters about that he found out that their neighbor, Mr. Grouse, has no one to spend the holidays and can't travel to see his family. This gives Luna the realization that the reason she's been having much so trouble with her song is because her previous attempts were not in the true Christmas spirit at all. When the Loud and McBride families go to spend the evening with Mr. Grouse and spread Christmas cheer to him, Luna leads them in singing her new song, "That's What Christmas is All About". At the end of the episode, it is shown that Luna received a banjo for Christmas.
In the online-exclusive Loud House short "12 Days of Christmas", in which the Loud family sings their version of the titular song, Luna sings that she got three French horns for Christmas.