ZEROBASEONE (제로베이스원, often ZB1) is a nine-member boy group that debuted in July 2023 under WAKEONE. Per reports, it continues as five members from March 2026.
🎤 ZEROBASEONE (ZB1) Profile
| Name | ZEROBASEONE (ZB1) (제로베이스원) |
| Debut | July 2023 |
| Agency | WAKEONE |
| Members | Zhang Hao, Sung Han-bin, Matthew, Kim Tae-rae, Ricky, Kim Gyu-vin, Park Gun-wook, Han Yu-jin, Kim Ji-woong (9 members). Reported to continue as five members from March 2026 |
| Genre | Boy pop |
| Signature songs | "In Bloom" (2023) / "CRUSH (가시)" (2023) / "Feel the POP" (2024) / "Good So Bad" (2024) |
📖 About ZEROBASEONE (ZB1)
ZEROBASEONE debuted in July 2023 with "In Bloom." The members were chosen by viewer votes on Mnet's survival show BOYS PLANET and come from various places, including Korea, China and Canada.
Since its debut, albums such as "CRUSH" and "Feel the POP" have sold over a million copies each, and the group is also known by the abbreviation "ZB1."
🕰 Timeline
- July 2023: Debut with "In Bloom"
- 2023–2024: "CRUSH," "Feel the POP" and "Good So Bad"
- February 2, 2026: Special album "RE-FLOW"
- March 13–15, 2026: Encore shows of the world tour — reported as the last stage with nine members
- 2026: Reported to continue as five members
🔥 Recent Activity (2025–2026)
On February 2, 2026, the group released the special album "RE-FLOW," looking back on its first two and a half years.
On March 13–15, 2026 it held the encore shows of the world tour "HERE&NOW" at KSPO DOME in Seoul, reported as its last stage with nine members; the whole tour was said to have drawn about 210,000 people.
From March, it was reported that the group would continue as five members. We could not confirm details about the remaining five or the new album (reported as the 6th mini album "Ascend-"). ZEROBASEONE is also in the Day 2 lineup of AAA 2026 — see our AAA 2026 guide.
❓ Frequently Asked Questions
When did ZEROBASEONE debut?
In July 2023, under WAKEONE.
Who are the members of ZEROBASEONE?
Nine members: Zhang Hao, Sung Han-bin, Matthew, Kim Tae-rae, Ricky, Kim Gyu-vin, Park Gun-wook, Han Yu-jin and Kim Ji-woong. It is reported to continue as five members from March 2026.
What are ZEROBASEONE's most famous songs?
"In Bloom" and "CRUSH (가시)" (2023), "Feel the POP" and "Good So Bad" (2024).
How were the members chosen?
By viewer votes on Mnet's survival show BOYS PLANET.
What has ZEROBASEONE been doing recently?
It released the special album "RE-FLOW" on February 2, 2026 and held the encore shows of the "HERE&NOW" tour on March 13–15, reported as the last stage with nine members.
Based on public information as of November 2026. Debut dates and activity periods may differ between sources; some items are press reports — please check official announcements.