DAYOUNG (다영) is a South Korean singer and member of WJSN (Cosmic Girls) who has expanded her career through unit activities, variety appearances, songwriting, and solo music.
Born Kim Dayoung on May 14, 1999, Dayoung debuted with WJSN in 2016 and later became part of the group’s sub-unit WJSN CHOCOME. In 2025, she officially began a new chapter as a solo artist with her first single album, gonna love me, right?.
Her solo career continued in 2026 with the digital single “What’s a girl to do,” giving fans another look at her identity beyond her group activities. Starship Entertainment
DAYOUNG Profile Information
| Category | Details |
|---|---|
| Stage Name | DAYOUNG |
| Korean Name | 다영 |
| Birth Name | Kim Dayoung (김다영) |
| Date of Birth | May 14, 1999 |
| Nationality | South Korean |
| Occupation | Singer, Performer, Entertainer |
| Group | WJSN |
| Unit | WJSN CHOCOME |
| Agency | Starship Entertainment |
| WJSN Debut | February 25, 2016 |
| Solo Debut | September 9, 2025 |
| Solo Debut Release | gonna love me, right? |
| Solo Title Track | “body” |
| Latest Solo Single | “What’s a girl to do” |
| Known For | WJSN, WJSN CHOCOME, Variety, Solo Music |
Who Is DAYOUNG?
DAYOUNG is a member of WJSN, also known as Cosmic Girls, a girl group managed by Starship Entertainment.
Within WJSN, she is recognized for her energetic personality, bright performance style, and strong presence in entertainment and variety content.
Over the years, Dayoung has developed an identity that extends beyond music. Her appearances in entertainment programs helped showcase her humor and outgoing personality, while her activities with WJSN and WJSN CHOCOME demonstrated her performance abilities.
Starship Entertainment’s current WJSN profile lists Dayoung among the group’s members and identifies her birth date as May 14, 1999. Starship Entertainment
DAYOUNG’s Early Life and Pre-Debut
Dayoung was born on May 14, 1999, in South Korea.
Before becoming a member of WJSN, she participated in the Korean survival audition program K-pop Star 1, gaining early exposure to the entertainment industry.
She later joined Starship Entertainment as a trainee and continued developing her singing and performance skills.
DAYOUNG and WJSN
Dayoung officially debuted with WJSN on February 25, 2016.
The group made its debut with the extended play Would You Like? and the title track “MoMoMo.”
WJSN developed a distinctive identity built around cosmic and fantasy-inspired concepts while gradually exploring different styles throughout its career.
Some notable WJSN songs include:
- “MoMoMo”
- “Secret”
- “I Wish”
- “Happy”
- “Dreams Come True”
- “Save Me, Save You”
- “La La Love”
- “Boogie Up”
- “As You Wish”
- “Butterfly”
- “UNNATURAL”
- “Super Yuppers!”
Dayoung participated in the group’s activities throughout its career and became particularly recognizable for her bright personality and entertainment skills.
DAYOUNG and WJSN CHOCOME
Dayoung is also a member of WJSN CHOCOME, WJSN’s playful and energetic sub-unit.
The unit consists of:
- Dayoung
- Luda
- Soobin
- Yeoreum
WJSN CHOCOME debuted in 2020 with “Hmph!”
The unit presented a much brighter and more humorous image compared with some of WJSN’s more elegant or cosmic concepts.
Its energetic choreography and colorful styling helped CHOCOME develop its own identity within WJSN.
DAYOUNG’s Variety Career
Dayoung has become particularly recognizable through entertainment and variety appearances.
Her energetic personality, quick reactions, and humorous approach have allowed her to stand out beyond traditional idol performances.
This side of her career became an important part of her public image and helped audiences become familiar with Dayoung as an individual rather than only as a member of WJSN.
DAYOUNG’s Solo Debut
Dayoung officially began her solo music career on September 9, 2025, with her first single album gonna love me, right?.
Starship Entertainment described the release as an important transition from her years of group and unit activities toward presenting herself as an individual artist. Starship Entertainment
The release contains three tracks:
- “body”
- “number one rockstar”
- “marry me”
The project gave Dayoung greater involvement in shaping her solo identity, including the music, concept, and visual direction. Starship Entertainment
“body”
“body” served as the title track of Dayoung’s first solo release.
The song is an upbeat pop-dance track built around a rhythmic groove and catchy hook.
Its concept presents Dayoung with a confident and direct attitude, allowing her to move away from simply being viewed through her previous group and variety personas.
The official release description highlights the song’s rhythmic energy and confident performance style. Starship Entertainment
“number one rockstar”
“number one rockstar” takes a more energetic rock-influenced direction.
The track uses guitar-driven sounds and a catchy melody to express Dayoung’s ambition and confidence as a performer.
It fits the larger story of her first solo release, which focuses on her desire to establish herself as an artist in her own right. Starship Entertainment
“marry me”
“marry me” takes a playful approach to romance and self-confidence.
One notable part of the track’s creation is Dayoung’s direct involvement in the songwriting.
The song was written by Dayoung alongside Olivia Knox, Yik Nam Jason Wu, and Eric Nam. Starship Entertainment
This participation gave her an additional opportunity to express her personality through her own lyrics.
DAYOUNG’s 2026 Single
Dayoung continued her solo activities in 2026 with the digital single “What’s a girl to do.”
Starship Entertainment lists the release date as April 7, 2026, with an official music video released alongside the song. Starship Entertainment
The release demonstrated that her solo career was continuing beyond her 2025 debut project.
DAYOUNG’s Music Style
Dayoung’s solo music presents a brighter and more confident side of her artistry.
Her solo work incorporates:
- Pop
- Dance-pop
- Electronic pop
- Rock-influenced sounds
- Upbeat performance music
Her first solo project particularly emphasizes confidence, personality, humor, and self-expression.
This makes her solo work different from the larger cosmic concepts associated with WJSN.
DAYOUNG as a Songwriter
Dayoung has also participated in the songwriting process.
For “marry me,” she received a songwriting credit alongside Olivia Knox, Yik Nam Jason Wu, and Eric Nam. Starship Entertainment
Her involvement suggests a growing role in shaping her individual artistic identity rather than simply performing material created for her.
DAYOUNG’s Career Highlights
Some of Dayoung’s major career milestones include:
- Debuting with WJSN in 2016
- Becoming a member of WJSN CHOCOME
- Participating in WJSN’s extensive group discography
- Developing a recognizable variety-show personality
- Making her official solo debut in 2025
- Releasing her first solo single album gonna love me, right?
- Participating in songwriting for “marry me”
- Releasing the 2026 digital single “What’s a girl to do”
- Expanding her identity from WJSN member to solo artist
DAYOUNG Facts
- DAYOUNG’s birth name is Kim Dayoung.
- She was born on May 14, 1999.
- She debuted as a member of WJSN in 2016.
- She is part of WJSN CHOCOME.
- CHOCOME debuted with “Hmph!”
- Dayoung began her solo career in 2025.
- Her first solo release was gonna love me, right?.
- “body” was the title track of her first solo release.
- Her first solo project contained three tracks.
- She participated in writing “marry me.”
- She released “What’s a girl to do” in April 2026.
- She is known for her energetic personality and variety skills.
- Her career includes group, sub-unit, variety, and solo activities.
Frequently Asked Questions About DAYOUNG
Who is DAYOUNG?
DAYOUNG is a South Korean singer and member of WJSN. She is also a member of WJSN CHOCOME and has developed a solo career.
What is DAYOUNG’s real name?
DAYOUNG’s birth name is Kim Dayoung (김다영).
When did DAYOUNG debut?
DAYOUNG debuted with WJSN on February 25, 2016.
Is DAYOUNG a member of WJSN CHOCOME?
Yes. Dayoung is one of the four members of WJSN CHOCOME, alongside Soobin, Luda, and Yeoreum.
When did DAYOUNG make her solo debut?
DAYOUNG made her official solo debut on September 9, 2025, with gonna love me, right?. Starship Entertainment
What is DAYOUNG’s solo debut song?
Her solo debut title track is “body.”
What are DAYOUNG’s solo songs?
Her solo releases include “body,” “number one rockstar,” “marry me,” and the 2026 digital single “What’s a girl to do.” Starship Entertainment
Is DAYOUNG a songwriter?
Yes. Dayoung participated in writing “marry me,” one of the songs from her first solo single album. Starship Entertainment
What is DAYOUNG known for?
Dayoung is known for her activities with WJSN and WJSN CHOCOME, her energetic personality, variety appearances, and her growing solo music career.
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Final Thoughts
DAYOUNG has spent years building her identity through WJSN, WJSN CHOCOME, variety entertainment, and group performances. Her solo debut marked an important new stage in her career, allowing her to present a more personal and confident artistic identity.
With gonna love me, right? and the 2026 single “What’s a girl to do,” Dayoung has begun establishing herself beyond her group activities while retaining the energetic personality that has made her recognizable to fans.
Her transition from WJSN member and entertainer to solo artist gives K-pop fans another opportunity to see a different side of DAYOUNG.
This KWaveHub profile is original editorial content created for KWaveHub. It is written in original wording and is not copied or republished from another publication. Starship Entertainment
