Members of ALLDAY PROJECT: Who Each One Is and Which Album to Hear First
Julián BerlangaJournalist and music critic
· 3 min read

The members of ALLDAY PROJECT are Annie, Tarzzan, Bailey, Woochan and Youngseo, a mixed quintet from South Korea that The Black Label presented in June 2025. More than by instruments, the group is understood through the trades each of them brought before the debut.
Arrivals and departures
- 6 June 2025: The Black Label announces the five.
- 23 June 2025: official debut with Famous.
- Departures: none so far.
A stable lineup from the start is uncommon in a market where changes of members are routine, and it is a point in the project’s favour.
By trade
- Bailey: choreographer. A 2022 reference described her as an 18-year-old choreographer. ALLDAY PROJECT’s choreography feels designed from the inside.
- Tarzzan: model and modern dancer, with appearances in NewJeans and I-dle music videos.
- Woochan: the face most seen on television, thanks to Show Me the Money 6 in 2017, and a Big Hit Music trainee.
- Youngseo: runner-up on R U Next? in 2023 and a former Illit hopeful; she left that agency before the debut.
- Annie: Annie Moon, granddaughter of the chairwoman of Shinsegae. Her surname drew attention, but the conversation has moved on to what she does on stage.
A mixed group in a two-sided market
Mixing girls and boys gives ALLDAY PROJECT an extra audience and less direct competition. The editorial team’s view is that this format is their distinguishing argument, and that the doubt is whether the interest will outlast the novelty. The 2025 numbers say it will.
Albums, and which to start with
- Famous: 23 June 2025, debut. The song was number one on the Circle Digital Chart.
- ALLDAY PROJECT: EP from 8 December 2025, with Look at Me; second place on the Circle Album Chart.
- Crash: EP from 28 September 2026; number 13.
Start with Famous, with its direct chorus. Follow with Look at Me. Crash has ambition but a cooler reception.
Awards in one year
Rookie of the Year and Best Artist at the Asia Artist Awards 2025, the Daesang at the Korea Grand Music Awards 2025 and the Rookie Artist of the Year at the Golden Disc 2026 sum up the start. They were also nominated for Best New K-pop Artist at the iHeartRadio Music Awards 2026.
Fandom and name
The fandom, Day One, was announced on 22 June 2025. The name “AllDay” is attributed to Will.i.am, of Black Eyed Peas.
How roles are shared on stage
With no instruments to divide up, the group works through profiles. Bailey brings the eye of someone who creates movement, Tarzzan the body of a model and dancer, Woochan the ease of someone who has spent years in front of a camera, Youngseo the experience of a television contest and Annie the media attention that her surname brings. A reasonable reading is that no profile duplicates another, and that is rare in a quintet.
Brief timeline
- 2017: Woochan on Show Me the Money 6.
- 2022: reference to Bailey as a choreographer.
- 2023: Youngseo, runner-up on R U Next?.
- 2024: Annie in leaked photos of trainees.
- 2025: announcement, debut and first awards.
- 2026: new collaborations and the EP Crash.
Which era is most worth it
The 2025 one. It is the freshest and the one that gathers the songs that stand up best on their own. What came in 2026 keeps up the level of visibility, but with a less rounded album than the first.
Written by
Julián Berlanga
Journalist and music critic. Julián Berlanga is a journalist and music critic with a degree in Journalism from the Complutense University of Madrid. He began publishing concert reports and record reviews in…
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