A I W E O

A I W E O Profile and Facts A I W E O (known as 아이우에오; known as Authentic Girl Band pre-debut) is a four-member South Korean girl band under authentic. The lineup consists of Dayeong, Dream, Hyunsu, and Seoyu. They will debut in 2026 with the EP BE MY HUG. *Debut date here is from their first MV [MV] 아이우에오 (A I W E O) - ‘아이우에오’

A I W E O members height, age

Click on a member's name to scroll to their profile

Member	Height	Age
Dayeong	—	22 years
Dream	172 cm	22 years
Hyunsu	—	20 years
Seoyu	—	18 years

Debut Date: September 5, 2026
Group Name Meaning: "The team name AIWEO carries the meaning that four members with distinct individualities will come together to create one massive resonance, much like different vowels connecting seamlessly".
Naver Blog: @authenticgirlband

Official links

Group Stats

Height: Dream · 172 cm
Average age: 20.5 years
Oldest: 22 years · Dayeong
Youngest: 18 years · Seoyu

Members

Dayeong

Stage Name: Dayeong (다영)
Birth Name: Jeong Dayeong (정다영)
Position(s): Leader, Sub Guitarist, Sub Vocalist
Birthday: July 23, 2004
Age: 22 years
Zodiac Sign: Leo
Chinese Zodiac Sign: Monkey
MBTI Type: ENFJ
Nationality: Korean

Facts

She was born in Pohang, North Gyeongsang Province, South Korea.
Dayeong lived alone in Seoul for three years starting at age 20, and she still lives there.
Her favorite movie is Salmokji: Whispering Water.
Her favorite nicknames are Ganadi and Dayoi.
She worked part-time while attending school.
Dayeong was scouted by Authentic after her viral cover of HANRORO’s “Landing In Love.”
To relieve stress, she eats something tasty and sleeps, or she calls a close friend for hours.
Her grandfather named her Dayeong, meaning “many” and “shining.” She was almost named Seoyoung.
Her father opposed music at first, but she and her mother secretly discussed it for three years as a hobby.
She prefers sleeping in short sleeves and thin pants because she dislikes feeling stuffy.
Her favorite season is spring.
She won the grand prize at the 18th World Youth Korean Speech Contest in 2013.
Her top three apps are Instagram, YouTube, and Naver Maps.
Dayeong is a big fan of HANRORO.
She attends Dong-ah Institute of Media and Arts, majoring in composition, but is currently on leave.
Her favorite time of day is walking with a coffee, especially in nature.
On YouTube, she watches I Am a Natural Person and Screening Humanity.
She was part of the Newaile Vocal Pirate Crew, trained by singer Newaile.
Her favorite snack is Crown corn chips.
She wants to appear on Talk Pawon 25 O’Clock.
She rarely plays video games, but when she does, it’s PUBG Mobile.
Her motto is “Do not be bound by the past.”
Her most treasured items are her phone and her treasure box.
She describes herself as ambitious because she gathers courage to pursue what she wants.
On holidays, she visits her hometown to rest, eat her mother’s food, and walk by the ocean.
Her special skill is imitating people around her.
Her prenatal nickname was Strawberry because her mother craved strawberries during pregnancy.
Her most used emoticons are Ganadi emoticons.
She was a guest vocalist on 015B’s songs “Our Way” and “How R U.”

Dream

Stage Name: Dream (드림)
Birth Name: Choi Dream (최드림)
Position(s): Main Vocalist
Birthday: February 2, 2004
Age: 22 years
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Monkey
Height: 172 cm (5'7.5″)
MBTI Type: INFP
Nationality: Korean

Facts

Dream was born in Guri, Gyeonggi Province, South Korea.
She listens to artists like beabadoobee, wave to earth, and The Volunteers.
She has an older brother, a younger sister, and a younger brother.
As a child, she sang along to TV music, played piano, and pretended to play guitar and drums.
Dream took vocal lessons at Jam Practical Music Academy.
Her favorite character is Pompompurin from Hello Kitty.
Her role models include Olivia Rodrigo, Kim Daniel from wave to earth, and So!YoON! from SE SO NEON.
She studies vocal music at Howon University.
Dream is learning Japanese.
Her favorite times of day include stretching, writing in her diary, and sleeping.
Her special skill is imitating voices and mannerisms.
Her name means “giving everything to God.” Her father considered naming her Da-dream but chose Dream instead.
Before joining the band, she worked part-time in recording and busked.
Authentic’s CEO contacted her unexpectedly via DM. She joined after attending HANRORO’s concert and receiving homemade Dubai chocolate cookies.
She was featured on CeREELs’ song “Evil Santa.”
On YouTube, she watches workout videos, I Hate Scary Things, and music-related content.
Her top three apps are Apple Music, KakaoTalk, and Instagram.
Her favorite movie genre is horror.
Her favorite snacks are White Heim and Orion Market O’s Cheese Tok.
On holidays, she visits her grandmother’s house to eat, play basketball, and ride bikes.
Her prenatal nickname was Dreamy because her parents voted on names after learning she was a girl.
Her favorite movies include Tangled (2010), Paranormal Activity (2007), Drawing Closer (2024), and How to Train Your Dragon (2025).
Her treasured items are letters she receives and her electric guitar.
To relieve stress, she likes hugs from her mother or listening to music alone.
Her favorite games are Minecraft and My Tamagotchi Forever.
Her nickname is Deumi.
Her favorite foods are HANJUNGSUN rice cakes (Dubai chocolate and Gold Kiwi flavors) and her grandmother’s yangnyeom-gejang.
She loves all seasons.
Her favorite emoticons are Ganadi emoticons.

Hyunsu

Stage Name: Hyunsu (현수)
Birth Name: Jo Hyunsu (조현수)
Position(s): Guitarist
Birthday: August 3, 2006
Age: 20 years
Zodiac Sign: Leo
MBTI Type: ISTP
Nationality: Korean

Facts

Hyunsu is from Masan, Changwon, South Gyeongsang Province, South Korea.
Her favorite movie is the 2024 Japanese film HAPPYEND.
She has an older brother.
Her top three apps are Instagram, Naver Maps, and KakaoTalk. She says she can’t live without Naver Maps because she’s bad with directions.
Without a clear career path, Hyunsu started guitar as a hobby but became so passionate she skipped classes to practice.
She whistles to calm down when angry.
She worked part-time at a meat restaurant and a café to pay rent for her studio during her university leave.
In high school, she dreamed of becoming a variety show PD because she loved New Journey to the West.
She made three demos a week while working part-time and sent six tracks to Authentic, which called her back within hours.
To relieve stress, she eats foods like tteokbokki, gopchang, and dakbal.
Before sleeping, she browses Naver Maps for restaurants to visit the next day.
She has loved singing since childhood.
Her special skills include whistling, strong toes, and befriending cats.
She studied contemporary music at Baekseok Arts University.
Her favorite time of day is early morning.
On her days off, she plays music loudly and naps on the sofa. On nice days, she enjoys smoothies and long solo walks.
Hyunsu writes lyrics and composes songs.
Her name means: Jo (nation), Hyun (virtuous/wise), and Su (outstanding/bright). It was given to her with the hope she would become a wise and outstanding person who shines brightly.
Hyunsu considered the stage name Yaongi (kitty), but decided to keep her birth name.
On YouTube, she watches ChimChakMan, the Chimchuldan trio, New Journey to the West, anime clips, Kang’s Kitchen, ddeong-gae, ryujehong, High Kick!, and horror game streams.
She is a homebody.
Her favorite snacks are Crown corn chips (super sweet corn flavor) and Nongshim Basakchuri Gotwi Sweet Potato Snack.
She enjoys browsing bookstores.
Her most treasured items are two Fender Stratocaster guitars, two acoustic guitars, and one semi-acoustic guitar.
Hyunsu is a die-hard Overwatch fan. She also plays Valorant, League of Legends, Homescapes, and Infinite Stairs.
She bought her first guitar, a teal Schecter, while preparing for college entrance exams, and still uses it.
She bought a semi-acoustic guitar during a period when she listened to Wes Montgomery often.
Her favorite foods are bread, yupgi rose tteokbokki, and rose tteokbokki with mala sauce.
Her nickname is Johsu.
Her favorite season is winter.
Her favorite emoticons include French bulldog emoticons, baby kkaedeuki emoticons, and hand-painted Tamagotchi Friends emoticons.
She describes herself as a “fuse” because she dives into things even when scared.
Her motto is “If I do it, it works.”
She has a French bulldog.
She is the second youngest member of the band.

Seoyu

Stage Name: Seoyu (서유)
Birth Name: Jeon Seoyu (전서유)
Position(s): Bassist, Maknae
Birthday: May 19, 2008
Age: 18 years
Zodiac Sign: Taurus
Chinese Zodiac Sign: Rat
MBTI Type: INFP
Nationality: Korean

Facts

She was the last member to join the band.
Her nicknames include Sseo-yu, Sseo-sseo-yu, and Yu-ya.
Her name means: Jeon (whole/complete), Seo (to dwell), Yu (only/sole). It was given with the meaning of living as a whole being and following her own path.
On YouTube, she watches bass players and ChimChakMan, but prefers Instagram videos.
Her favorite artists are Effie, HAON, and Sik-K.
Seoyu has played bass since April of her third year in middle school.
Her favorite music genre is electronic.
She recommends the series Hunter x Hunter.
She describes herself as “youth.”
Her favorite Sgt. Frog character is Dororo.
Her first bass was purple.
Her top three apps are Instagram, Apple Music, and Cookie Run.
She quit her part-time job right before joining the band.
Seoyu is a fan of ChimChakMan.
Her frequently used emojis include 🥹, 😭, 🫂, 🩷, 🤘, 🩵, and 💖.
She is good at board games and once played Splendor for five hours.
Her favorite foods include spicy red dishes, gopdoritang, and sushi.
She attended Incheon Popular Arts High School as a bass major.
She studied at SM Music Academy and took bass lessons from Siyong Lee.
She was part of the musical group JeonJeonDuo.
Her most used KakaoTalk emoticons are Honorific Bear Part 3 and My Melody “Take My Love.”
She enjoys listening to music.
She rarely eats snacks, but when she does, she chooses Ottogi’s Ppushu Ppushu.
Her most cherished item is her Fender American Professional II Jazz Bass.
Her special skill is making delicious coffee.
Her motto is “Wherever it leads.”
She doesn’t watch many movies, but her favorite is Mean Girls.