Jueun
DIA

Jueun

주은 · 이주은 (Lee Ju-eun)
Lee Ju-eun – Main Vocalist
DIA Main Vocalist Soloist Songwriter
🎂 July 6, 1995 🌍 South Korean 📏 163 cm ⚖️ 44 kg 🩸 Type A 🧠 ISTP ♊ Gemini
Jueun (주은), also romanized Jooeun and born Lee Ju-eun, is a South Korean idol and the main vocalist of the K-pop girl group DIA. Born June 7, 1995 in Suwon, Jueun took an unconventional path into idol life, working as DIA's assistant manager and dancing behind boy group UNB before officially joining DIA on April 19, 2017 and becoming part of the sub-unit L.U.B. A skilled multi-instrumentalist who plays violin, guitar, and piano, she balanced group promotions with acting roles in web dramas like "Do Dream" and the Netflix series "My First First Love." After DIA's 2022 hiatus, Jueun launched a thriving solo career, debuting on April 27, 2023 with the single "Easy Breezy" featuring Seo In-guk under the fandom name Ju-piter, and following up with releases including "1,2,3,4" and "Santa, I Have a Wish..." In 2024 she signed with Brotherhood Entertainment to keep expanding her solo catalog. Known for her clear vocal tone, calm personality, and steady work ethic, Jueun remains a beloved member of DIA's fandom AID while carving out her own identity as an independent artist. Her journey from staff member to featured soloist stands as one of the most distinctive success stories among third-generation K-pop idols.
Story

Biography

Who Is Jueun of DIA?

Jueun (주은, also romanized Jooeun), born Lee Ju-eun on June 7, 1995, in Suwon, South Korea, is a South Korean idol, singer-songwriter, and actress. She is best known as the main vocalist of the K-pop girl group DIA and, more recently, as a solo artist building her own catalog of releases.

From Trainee to Assistant Manager to Idol

Jueun’s road to DIA was anything but conventional. She first appeared on the public’s radar as a contestant on “K-pop Star 2,” then trained under Polaris Entertainment. After moving to MBK Entertainment, she actually worked behind the scenes as DIA’s assistant manager and as a back-up dancer for boy group UNB before officially becoming a member of DIA herself on April 19, 2017, joining alongside member Somyi and becoming part of the sub-unit L.U.B.

Life as DIA’s Main Vocalist

As DIA’s main vocalist, Jueun brought a clear, emotive tone to the group’s discography while also branching into acting, appearing in web dramas such as “Do Dream” and the Netflix original “My First First Love.” Her multi-instrument talent, she plays violin, guitar, and piano, gave her a broader musical foundation than many of her peers.

Solo Career and Recent Activities

When DIA’s group activities slowed after 2022, Jueun moved quickly into a solo lane. She debuted as a soloist on April 27, 2023, with the digital single “Easy Breezy,” featuring Seo In-guk, under the official fandom name Ju-piter. She followed up with the OST contribution “Kokdu: Season of Deity,” the 2024 single “1,2,3,4” featuring Moon Sujin, and the winter release “Santa, I Have a Wish…” By 2024 she had signed with Brotherhood Entertainment to keep growing her solo discography while still carrying her DIA membership.

Personality and Fun Facts

Fans describe Jueun as easygoing, warm, and quietly hardworking. She keeps two cats, Cozy and Roongzi, favors the color blue, and maintains close friendships with LOONA’s HyunJin and IZ*ONE’s Yena. Her steady rise from behind-the-scenes staffer to recognized solo artist has made her one of DIA’s most inspiring member stories.

Profile

Basic Information

Stage NameJueun (주은)
Full Birth NameLee Ju-eun (이주은, 李宙恩)
Date of BirthJune 7, 1995
BirthplaceMangpo-dong, Paldal-gu, Suwon, Gyeonggi-do, South Korea
HometownSuwon, South Korea
NationalitySouth Korean
Height163 cm official / 161.3 cm real (5'3"–5'4")
Weight44 kg (97 lbs)
Blood TypeA
Zodiac SignGemini
MBTIISTP
EducationMangpo Middle School; Mangpo High School; Korea Nazarene University (Practical Music, leave of absence)
AgencyBrotherhood Entertainment (formerly EPISODE MUSIC, AER MUSIC, PocketDol Studio, MBK Entertainment)
DebutApril 19, 2017 (DIA); solo debut April 27, 2023 ("Easy Breezy")
LanguagesKorean, basic Japanese
NicknamesJu-piter (fandom name), Jusilver
HobbiesPlaying violin, guitar, and piano
Favorite ColorBlue
Ideal TypeNot publicly disclosed
Membership

Groups & Positions

DIA
MBK Entertainment / PocketDol Studio
Main Vocalist Soloist Songwriter
April 2017 – Present (hiatus since 2022)
Journey

Career Timeline

2012
K-pop Star 2
Competed as a contestant on the audition show "K-pop Star 2" before her idol career began.
2016
DIA Assistant Manager
Worked as an assistant manager for DIA and appeared as a back-up dancer for UNB's "Black Heart" promotions before officially joining the group.
2017
DIA Debut
Officially joined DIA on April 19, 2017, alongside member Somyi, and became part of the group's sub-unit L.U.B.
2018
Acting Debut
Appeared in the web drama "Do Dream" as an actress.
2019
My First First Love
Starred in the Netflix original series "My First First Love."
2022
DIA Hiatus
DIA left PocketDol Studio, and Jueun began building her solo career under AER Music.
2023
Solo Debut
Released her debut solo digital single "Easy Breezy," featuring Seo In-guk, on April 27, 2023.
2024
New Solo Singles
Released the digital singles "1,2,3,4" (feat. Moon Sujin) and "Santa, I Have a Wish..." as a soloist.
2024
Brotherhood Entertainment
Signed an exclusive contract with Brotherhood Entertainment to continue her solo career.
Music

Discography

🎵
Easy Breezy (feat. Seo In-guk)
Digital Single
2023
🎵
1,2,3,4 (feat. Moon Sujin)
Digital Single
2024
🎵
Santa, I Have a Wish...
Digital Single
2024
💜
Do It Amazing
Studio Album
2015
💜
Happy Ending
EP
2016
💜
Spell
EP
2016
💜
YOLO
Studio Album
2017
💜
Love Generation
EP
2017
💜
Present (Repackage)
EP
2017
💜
Summer Ade
EP
2018
💜
Newtro
EP
2019
💜
Flower 4 Seasons
EP
2020
🎧
My Friend's Boyfriend
Digital Single
2015
🎧
Rooting For You
Digital Single
2022
Recognition

Awards & Achievements

🏆
Special Idol Award
AfreecaTV BJ Awards
2015
🏆
Music Show Win – "WooWoo"
The Show
2018
Did You Know?

Trivia & Fun Facts ✨

★
Jueun was born on June 7, 1995, in Mangpo-dong, Suwon, Gyeonggi-do, South Korea.
★
Her birth name is Lee Ju-eun, written in Hanja as 李宙恩.
★
She has an older brother, born in 1991.
★
Before becoming an idol, she was a contestant on the audition show "K-pop Star 2."
★
She trained under Polaris Entertainment before moving to MBK Entertainment.
★
She once worked as an assistant manager for DIA before officially becoming a member herself.
★
She joined DIA on April 19, 2017, alongside member Somyi.
★
Jueun is part of DIA's sub-unit L.U.B.
★
She can play the violin, guitar, and piano.
★
She took a leave of absence from Korea Nazarene University's Practical Music program to pursue her idol career.
★
She served as a back-up dancer for UNB's "Black Heart" promotions before her own debut.
★
Her official fandom name as a soloist is Ju-piter (주피터).
★
She made her solo debut on April 27, 2023, with the digital single "Easy Breezy," featuring Seo In-guk.
★
She has appeared in web dramas including "Do Dream" (2018) and "My First First Love" (2019).
★
She contributed vocals to the OST of the drama "Kokdu: Season of Deity" in 2023.
★
She released the digital single "1,2,3,4," featuring Moon Sujin, in September 2024.
★
She released a winter-themed single, "Santa, I Have a Wish...," in December 2024.
★
She signed with Brotherhood Entertainment in 2024 to continue her solo career.
★
She owns two cats named Cozy and Roongzi.
★
Her favorite color is blue.
★
She is close friends with LOONA's HyunJin and IZ*ONE's Yena.
★
She is still learning Japanese and can speak it at a basic level.
★
Fans often praise her clear, emotive vocal tone.
★
Despite DIA's inactive status since 2022, she remains listed as an official member of the group.
★
She has continued acting alongside her music career, appearing in several Korean web series.
★
Her Instagram handle "jusilver_67" plays on her stage name.
★
She now promotes primarily as a solo artist while keeping close ties with her former DIA members.
★
She is known among fans for her calm, easygoing personality.
★
Jueun has cited singers like Seo In-guk as important collaborators in her solo career.
★
She has continued to release new solo music on a fairly regular basis since 2023.
The Fandom

Fan Club & Fan Name 💜

Official Fan Name
AID
AID is DIA's official fandom name, formed by reading the group's own name backwards. It represents the loyal supporters who have followed DIA through nine lineup changes since the group's September 2015 debut under MBK Entertainment.
Official Fan Color
AID Blue & DIA Red
DIA's promotional materials paired a bright blue with a bold red. The agency never published official Pantone codes, so these tones are the widely used fan-recognized approximation.
Official Light Stick
Yambong (unofficial fan lightstick)
DIA never released a dedicated concert lightstick. Fans instead adopted a blue-and-white candy-shaped stick nicknamed 'Yambong,' first sold as a temporary item that fans later treated as the group's de facto lightstick at fan meets and music shows.
Fan Community Platform
Daum Fan Cafe (officialdia)
The group's primary fan community hub, where members interacted directly with AID and shared exclusive updates throughout DIA's active years under MBK Entertainment and PocketDol Studio.
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