ONE N' ONLY

ONE N' ONLY is a vibrant six-member Japanese dance and vocal group that emerged in 2018 under the management of Stardust Promotion. They've carved out a distinct identity with their self-proclaimed 'JK-Pop' sound, a dynamic fusion of J-pop and K-pop influences, frequently enhanced by rap verses. The group currently consists of Rei, Tetta, Naoya, Kenshin, Hayato, and Eiku. Initially, the lineup included a seventh member, Kohki, who departed in 2019. Several members also lend their talents to other musical projects, including the groups EBBiSH and Satori Boys Club (SBC), showcasing their broad engagement within the music scene.

Their musical journey began with the release of 'I'M SWAG,' their debut EP which secured the sixth position on the Oricon Singles Chart. They later achieved significant success with their single 'Dark Knight,' which soared to number one on the same chart. Beyond Japan's borders, ONE N' ONLY has cultivated a dedicated fanbase, particularly in Brazil. Their connection with Brazilian fans is evident through their performances there, the release of songs in Portuguese like 'L.O.C.A.' and 'Get That,' and their engagement on social media with choreographies of popular Brazilian tracks. In 2023, the group also expanded into acting, participating in the film Battle King – We’ll rise again. [edit]

ONE N' ONLY officially debuted in 2018, forming under the umbrella of Stardust Promotion's EBiDAN (Ebisu Gakuen Boys Division) project. While specific details regarding the intensive audition processes and rigorous training periods that led to their formation are not widely publicized, the group was assembled with a vision to create a unique sound that blended Japanese and Korean pop music trends. The initial lineup featured seven members, but this configuration evolved when Kohki departed the group in 2019. The remaining members, Rei Sawamura, Tetta Seki, Naoya Kusakawa, Kenshin Kamimura, Hayato Takao, and Eiku Yamashita, continued as a six-member unit, solidifying their presence in the entertainment industry.

Their debut EP, I'M SWAG, marked their official entry into the music scene, quickly making an impression by reaching sixth place on the Oricon Singles Chart. This early success set the stage for future releases, including the single 'Dark Knight,' which later achieved a significant milestone by topping the Oricon Singles Chart. The group's formation within the EBiDAN framework allowed them to build upon existing fanbases and experiences from other EBiDAN-affiliated groups, contributing to their initial momentum. [edit]

ONE N' ONLY's sound is characterized by its innovative fusion of Japanese and Korean pop music elements, a style they've coined 'JK-Pop.' This blend often incorporates driving dance beats and melodic hooks typical of J-pop, interwoven with the sophisticated production and vocal styles found in K-pop. A significant feature of their music is the inclusion of rap, adding a layer of urban edge and rhythmic complexity to their tracks. Their releases demonstrate a willingness to experiment with different genres; for instance, their 2024 EP Fiesta explored a vibrant mix of J-pop and Latin music influences, showcasing their versatility and global outlook.

Lyrically, their songs often explore themes of confidence, passion, and overcoming challenges, resonating with a youthful audience. The production style generally favors polished, energetic arrangements designed for performance, highlighting their capabilities as a dance group. Their use of Portuguese in songs like 'L.O.C.A.' and 'Get That' further illustrates their adventurous approach to musicality and their desire to connect with diverse international fanbases. [edit]

While perhaps not reaching the global scale of some K-pop giants, ONE N' ONLY has made a notable impact, particularly in connecting with audiences outside of Japan. Their deliberate efforts to engage with the Brazilian market, including releasing music in Portuguese and sharing dance covers of popular Brazilian songs on social media, have fostered a strong and loyal fanbase there. This cross-cultural outreach demonstrates a strategic approach to building international appeal beyond traditional J-pop markets.

The group's participation in the film Battle King – We’ll rise again in 2023 also broadened their visibility, showcasing their talents in a different medium. Their presence within the EBiDAN project connects them to a larger ecosystem of young male performers in Japan, contributing to the ongoing evolution of the idol group landscape. Their 'JK-Pop' concept itself represents an interesting cultural experiment, bridging two of Asia's most influential music markets. [edit]

The official fandom name for ONE N' ONLY is 'SWAG.' This name reflects the group's energetic and confident image, often associated with their debut song and overall musical style. The fandom is known for its dedicated support, particularly evident in the enthusiastic response from Brazilian fans, who have embraced the group's efforts to connect across language barriers. While specific fan traditions, unique fan projects, or a designated official lightstick and fan color are not extensively detailed in available information, the 'SWAG' moniker serves as a unifying identity for their supporters worldwide. [edit]