Formed on Boys Planet as a nine-member project group, ZEROBASEONE carried on as a five-piece in 2026. Here is what a new fan needs to know.
4years on 10 July 2027 · in 263 days
Quick answers
When did ZEROBASEONE debut?
On 10 July 2023, with the EP YOUTH IN THE SHADE.
How many members does ZEROBASEONE have?
Five: Sung Han-bin (leader), Kim Ji-woong, Seok Matthew, Kim Tae-rae and Park Gun-wook.
What is the ZEROBASEONE fandom called?
ZEROSE, a blend of "zero" and "rose". It was announced on 1 May 2023.
What does ZEROBASEONE mean?
A start from zero (0) that rises to one (1): from incomplete to complete, together with the fans.
Is ZEROBASEONE still together?
Yes. The nine-member project contract ended in March 2026. Since then five members continue under WAKEONE; Zhang Hao, Ricky, Kim Gyu-vin and Han Yu-jin left and debuted as AND2BLE.
The story so far
Nine finalists of Mnet's Boys Planet form ZEROBASEONE.
Debut with YOUTH IN THE SHADE: 1.24 million copies on day one, a Hanteo record for a debut album.
First fan concert, at Gocheok Sky Dome in Seoul, one month after debut.
First Asia tour, TIMELESS WORLD.
First studio album NEVER SAY NEVER enters the Billboard 200 at No. 23; "ICONIK" wins on all six music shows.
Special album RE-FLOW, the last release by all nine members.
WAKEONE confirms the group continues with five members; four members leave when the project contract ends.
HERE & NOW encore concerts at KSPO DOME in Seoul.
Ascend-, the first release as a five-member group.
Seok Matthew and Park Gun-wook debut as the first unit, ZEROBASEONE EMP.
Start with these 5 songs
In BloomThe debut song, from the first debut album to sell a million copies in one day.2023
CRUSHTitle track of MELTING POINT, which sold 2.1 million copies in its first week.2023
Feel the POPTitle track of You had me at HELLO, their third million seller on day one.2024
ICONIKA first place on all six weekly music shows in six days.2025
TOP 5The first title track by the five-member line-up.2026
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In the Fan Chart
The Fan Chart on The Crowd adds up every fan's top 10. Here is where ZEROBASEONE stands.
Released his first solo EP, Dead Alive, on 12 October 2026.
Kim Ji-woong
김지웅
Name
Kim Ji-woong
Born
14 December 1998
Role
Oldest member
Acted in the web dramas The Sweet Blood (2021) and Kissable Lips (2022).
Seok Matthew
석매튜
Name
Seok Woo-hyun
Born
28 May 2002
Born in Canada; finished third on Boys Planet and co-wrote the EMP mixtape.
Kim Tae-rae
김태래
Name
Kim Tae-rae
Born
14 July 2002
Competed on the 2020 audition show Top 10 Student before Boys Planet.
Park Gun-wook
박건욱
Name
Park Gun-wook
Born
10 January 2005
Role
Youngest member
Wrote the lyrics and music for "Customize" on the 2026 EP Ascend-.
EPs
YOUTH IN THE SHADEEP · title track "In Bloom"
MELTING POINTEP · title track "CRUSH"
You had me at HELLOEP · title track "Feel the POP"
CINEMA PARADISEEP · title track "GOOD SO BAD"
BLUE PARADISEEP · title track "BLUE"
Ascend-EP · title track "TOP 5"
Studio albums
NEVER SAY NEVERAlbum · title track "ICONIK"
Special albums
RE-FLOWSpecial album · title track "LOVEPOCALYPSE"
Unit: ZEROBASEONE EMP
EMP Mixtape Vol.1: We the ExtraMixtape · title track "EMP, Pina C"
"Running To Future" came out on 9 January 2026 as the pre-release of RE-FLOW. ZEROBASEONE EMP plans a digital single for November 2026. In Japan: the single "Yura Yura (Unmei no Hana)" (March 2024) and the EPs PREZENT (January 2025) and Kaiki LOVE (August 2026). Sung Han-bin's solo EP Dead Alive followed in October 2026.
Fandom nameZEROSE
A blend of "zero" and "rose": take "ze-be-one" (ZB1) out of ZEROBASEONE and "rose" is left. Announced on 1 May 2023.
Lightstick
Official lightstick in the shape of a ring with a rose on top; the petals light up blue. On sale from October 2023.
Official colour
Not officially announced.
Debut anniversary
10 July
Fan club name announced
1 May 2023
The name ZEROBASEONE
A start from zero (0) that rises to one (1), from incomplete to complete together with ZEROSE.
Watch first
Boys PlanetMnetThe 2023 survival show that formed the group; Sung Han-bin finished second.
CAMP ZEROBASEONEVikiThe group's own variety series.
Did you know
The lightstick is a ring, not a stick: a rose sits on top, a nod to the debut song "In Bloom".
Seok Matthew knew from the demo that "TOP 5" would be the title track, a title that fits the five members.
The unit name EMP stands for electromagnetic pulse, and also for "Extra" plus the initials of Matthew and Park Gun-wook.
Debut recordYOUTH IN THE SHADE sold 1,240,700 copies on day one, the highest for a debut album in Hanteo history.
Million sellersThe first K-pop group with six albums in a row selling a million since debut.
Gocheok Sky DomeA sold-out fan concert for 18,000 people one month after debut.
Rookie awardsTen Rookie of the Year awards across the 2023-2024 award season.
Billboard 200NEVER SAY NEVER entered at No. 23 in September 2025, their highest position.
Music show sweep"ICONIK" won on all six weekly music shows, six days in a row.
Circle chartAscend- topped the Circle album chart in 2026.
Tours
Fan concertGocheok Sky Dome, Seoul, one month after debut.
TIMELESS WORLDFirst Asia tour, September to December 2024.
HERE & NOWWorld tour from October 2025, with an encore at KSPO DOME in March 2026.
Know your ZEROBASEONE?Six K-pop questions a day in the Daily, and a collectible card for every finished set.