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Boy band · RBW · since 2019· 4th generation

ONEWE

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A five-piece band that writes and plays its own songs inside an idol agency. They started as MAS 0094 in 2015 and won their first music show trophy in October 2025, with "Maze".

8years on 13 May 2027 · in 181 days

ONEWE, September 2019
ONEWE, September 2019. Photo: NewsInStar · CC BY 3.0 · Wikimedia Commons

Their story

Three names, one band

ONEWE started out as MAS 0094, short for Make a Sound, an alternative rock band led by Yonghoon. Their first single, "Butterfly, Find a Flower", came out in August 2015. In 2017 the five signed with RBW, the home of MAMAMOO, and became MAS, and in 2018 the name changed again to ONEWE. The relaunch came on 13 May 2019 with the single album 1/4, followed that August by 2/4.

A band among idols

Like RBW's idol acts, they promote on music shows and have an official fan club, named WEVE on their first anniversary. The difference is that ONEWE play everything themselves and write their own material. Yonghoon sings lead, Kanghyun plays guitar, Harin drums, Dongmyeong plays keyboards and sings, and Giuk handles bass and rap. Label ties showed up early: "Last Song" with ONEUS in 2018 and "Q" with MAMAMOO's Hwasa in 2020.

From jazz horns to pop-rock

The sound moves around. "Maze", written by Giuk, puts horns and brass on top of a fusion jazz band, while "Scenario" is straight pop-rock about an author rewriting his own story. Next to the regular albums runs Studio We : Recording, a series of demo albums. After Yonghoon and Kanghyun came back from military service in 2024, the band took that sound on its first world tour in 2025, through Vietnam and more than a month in North America.

Where they are now

The long wait for a trophy ended on 15 October 2025, when "Maze" won Show Champion and the members thanked WEVE for the chance to hand them a trophy. A month later they took an overall win on Immortal Songs. In August 2026 came Unknown Atlas, a 17-track album that follows The Quiver and The Wake as the third part of their point, line and plane series. After two nights at KBS Arena in September, the tour moves on to Yokohama and Taipei in November.

Timeline

  1. First single, "Butterfly, Find a Flower", as MAS 0094.

  2. Debut as ONEWE with the single album 1/4.

  3. First world tour, from Vietnam to North America and back to Seoul.

  4. First music show win, on Show Champion, with "Maze".

  5. Third studio album, Unknown Atlas, led by "Scenario".

  6. 13 November 2026

Start with these 5 songs

  1. QFeaturing Hwasa of MAMAMOO, their label seniors at RBW.2020
  2. End of SpringTitle track of their first studio album, One.2020
  3. Rain To BeLead single of Planet Nine : Alter Ego.2021
  4. MazeFusion jazz with horns and brass, written by Giuk, and their first trophy.2025
  5. ScenarioPop-rock about an author rewriting his own story and the title track of Unknown Atlas.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 ONEWE stands.

    Add ONEWE to your setlist

    For WEVE

    YonghoonLeader

    용훈
    Name
    Not confirmed yet
    Born
    Not confirmed yet

    Lead vocalist and leader since the MAS 0094 days. He enlisted in July 2022 and returned in 2024.

    Kanghyun

    강현
    Name
    Not confirmed yet
    Born
    Not confirmed yet

    The guitarist. He enlisted in August 2022 as the second member and was back on stage in 2024.

    Harin

    하린
    Name
    Not confirmed yet
    Born
    Not confirmed yet

    The drummer and one of three members who starred in their own teaser for "Q" in March 2020.

    Dongmyeong

    동명
    Name
    Not confirmed yet
    Born
    Not confirmed yet

    Keyboards and vocals. He described Unknown Atlas as an album made like a storybook.

    Giuk

    기욱
    Name
    Not confirmed yet
    Born
    Not confirmed yet

    Bass and rap. Known as CyA until March 2023, he wrote the title track "Maze".

    Quick answers

    When did ONEWE debut?

    On 13 May 2019, with the single album 1/4. The band had already released music as MAS 0094 since 2015.

    Who are the members of ONEWE?

    Yonghoon (vocals and leader), Kanghyun (guitar), Harin (drums), Dongmyeong (keyboards and vocals) and Giuk (bass and rap). Giuk used the name CyA until 2023.

    What is the ONEWE fandom called?

    WEVE, announced on the band's first anniversary on 13 May 2020. It joins ONEWE with "move": moving forward together and moving each other.

    Are ONEWE a K-pop group or a band?

    A band. All five play an instrument, and the members write, compose and arrange their own songs. They are signed to RBW, the agency of MAMAMOO.

    Are ONEWE still active?

    Yes. Their third studio album, Unknown Atlas, came out on 19 August 2026, and they played two nights at KBS Arena in Seoul that September.

    Know your ONEWE?Six K-pop questions a day in the Daily, and a collectible card for every finished set.

    Play the Daily

    Last checked 30 October 2026. Spotted a mistake? Tell us.

    Sources