Luna's passion for rock music developed when she was just 9 years old. She was still trying to find her own calling at the time. She went to her first concert, and witnessed the lead performer, Mick Swagger, on stage singing, and calling out to her. She took the stage with Mick, and suddenly found out that the world of rock was where she was meant to be and that it was her destiny. Since that day, she has viewed Mick as her hero, because he gave her the inspiration to rock on.
Luna is very wild, caring, and easily the loudest sibling of the entire family. What she likes most is singing, playing musical instruments, and being with her family. Along with Leni, she is one of the most caring and helpful siblings.
After her first concert, she developed an interest in rock music. She is a big fan of several rock groups, and her dream is to become a rockstar. She owns and plays an electric guitar, with which she has proved to be a very good guitarist. Her skills aren't limited to just the guitar though. She also plays the drums, as well as other instruments, as seen throughout the series, like a violin in "Overnight Success". She sometimes talks with a fake British accent when she listens to music; something that her siblings consider to be an annoying habit.
She will get upset if someone turns off her music, and in some cases, she will get agitated by her siblings. She gets depressed when her family isn't with her, or when she upsets her siblings. This was most prominently seen in "House Music".
"Luna Loud loves music so much, she speaks in song lyrics! With a boisterous, free-spirited attitude, she is always ready to crank up the volume and rock out. Luna enjoys helping her siblings when they're in need, but she definitely puts the LOUD in Loud House!"
Luna is slightly taller than Luan, but shorter than Leni. She has short brown hair, styled into a pixie cut, freckles on her cheeks, and wears light purple eye shadow.
Her original design showed her with a black shirt, red skirt, and white boots, before her color scheme was transitioned to purple. In her final attire, she wears a purple t-shirt with a skull, torn crew neck and triangular sleeves, a plaid skirt similar to Luan's (only lavender), a light gray belt, and high purple boots. A distinguishing feature of hers is her paperclip earrings. She also wears three black bracelets on each of her wrists and a choker around her neck.
Her nightwear consists of a purple t-shirt with a skull on it, and matching slippers. For swimwear, she wears her signature shirt with matching bikini bottoms. Alternatively, she also wears a purple Hawaiian shirt and shorts.
In "For Bros About to Rock", it is revealed that she had a completely different wardrobe before becoming a rocker. Originally, she had longer hair that went down to her shoulders, extra eyelashes, a girlish light purple shirt, white earrings, the same square-patterned skirt, black Mary Jane shoes, and white socks, with blue stripes worn high.
Her guitar has a purple color scheme, similar to Luna's wardrobe, and it also comes with a purple guitar pic. As seen in "No Guts, No Glori", she can plug it into numerous amps.
Her guitar seems to be a hybrid of a Gibson Firebird, or Epiphone Explorer (with their iconic slanted body), and a Gibson V-Factor (with its iconic inward indent), resulting in a slanted 'X' body.
In Luna's episode of the Listen Out Loud podcast, she mentions her main guitar is a Logan V-80 Shredder.
According to Luna, she got it for her tenth birthday.
In the alternate dimension of the episode "One of the Boys", where Lincoln has brothers, instead of sisters, Luna is a boy named Luke Loud. Like his female counterpart, Luke is an aspiring rocker; however, he is shown to be rude and abrasive toward Lincoln, which completely contradicts how Luna is very caring towards Lincoln, as he uses his head for cleaning the toilet. It is also mentioned that he flushed Bun-Bun down the toilet.
Luke eventually turns out to be a product of Lincoln's imagination as the whole adventure was revealed to be a dream, and Lincoln wakes up from it at the end of the episode. Although in the "dimension" where the Loud children consist of one girl and ten boys, Luke's shown to be very caring and protective towards his sister, Linka (Lincoln's female counterpart).
In the minicomic "Deuces Wild!", Luna interprets the superheroine called Night Club, who is also one of Ace Savvy's sidekicks. She uses an electric guitar, that has a club as the head, with which she can produce powerful shock waves, and a jetpack to fly. In the comic, she is summoned by Savvy (played by Lincoln) alongside the rest of Savvy's deck (played by the rest of her sisters) to help him and One-Eyed Jack (played by Clyde) to defeat the gas monster. After they defeat it, they prepared to fight against a garbage monster.
Night Club made another appearance in "Pulp Friction", in the comic Lincoln was writing for the Ace Savvy contest. In that appearance, she used her loud music to knock back the thugs into a hole dug by the Eight of Spades.
Previously, in "Study Muffin", Luna and the rest of the sisters (except Lily), fell for Hugh and then said that Lincoln's teacher was super hot, which makes Luna the first known character on the show to be bisexual.
Since LGBT situations are different in different countries, this episode was edited in South Korea and probably not aired in China, Malaysia, Russia, and the Arab League.
Lincoln, Lily, Lynn, and Luna are the only siblings who have ever been naked on screen.
According to her episode of the Listen Out Loud podcast, she was 9 years old when she attended her first Mick Swagger concert.
This, in turn, means she has been a rocker for at least six years.
According to some information from The Loud House on Instagram:
Nobody knows that she sometimes rocks out to elevator music.
If she could go any where in the world, it would be top of the music charts.
Her biggest pet peeve is people who lip sync on stage.
Lincoln likes some of her mix-tapes.
A running gag in the series is that she has a tendency to quote song titles and lyrics.
It is revealed in "The Sweet Spot" that Luna sleeps with headphones on while playing loud rock music.
Lincoln, Lori, and Lana occasionally ask Luna for "a little music" depending on the situation, to which she responds by saying "You got it, man/bro/sis! 1, 2, 3!"
In "The Sweet Spot", it is revealed her singing gives Lisa tinnitus.
In "Get the Message", Luna censors Lincoln and Lori's swearing with her rocking solos.
Luna's the sister most frequently seen carrying Lily when all the Loud siblings are together, or on the move, along with Lincoln, Lori, and Leni.
She often calls her sisters and Lincoln "dude", or sometimes "bro" to the latter.
Her hair is the darkest shade of brown of the brunette sisters. In contrast, Luan's hair is the lightest shade of brown, followed by Lynn's and Lisa's brunette hair, which is slightly brighter than Luna's.
Luna is one of four main characters to have freckles. The other three are Lincoln, Lynn, and Clyde.
She is one of four Loud sisters to wear earrings (in Luna's case, paperclips). The other three are Lori, Leni, and Lola.
This also makes Luna the only brunette sister to wear earrings, although Luan also has her ears pierced as seen in "Cover Girls".
She is one of two Loud sisters to wear eye shadow (in Luna's case, purple). The other one is Lori.
She is the only Loud sister to wear boots.
Luna, along with Lynn, has more than one trophy according to "Making the Case".
Luna is the loudest of the Loud siblings.
Her name is the Latin/Spanish word for "Moon". and is also the origin of latin word "Lunaris" which is where the english word "Lunar" comes from.
Her amplifier, Sterrett, is named after comic strip artist Cliff Sterrett, the same comic strip artist Cliff is named after.
In "For Bros About to Rock", it is revealed that Luna insists on going to her siblings' first concerts, trying to make it a good experience for them, only for her to ruin it. Lincoln's first concert was her first success.
Luna's ideal superpower is to be able to play superpower chords.
She is one of two Loud sisters to have a logo on her shirt (in Luna's case, a skull). The other one is Lynn.
Luna is strong enough to carry Lynn, as seen in "Linc or Swim".
Luna has many guitars, but the purple one is most likely her favorite.