ONE N' ONLY

Overview

ONE N' ONLY is a five-member Japanese dance and vocal group. It emerged from EBiDAN, the collective of young male artists under Stardust Promotion, and was formed from members of the EBiDAN units Satori Shonendan and EBiSSH. The name means "one and only" in English, reflecting the goal of being unlike anyone else. The group is abbreviated as ONE-N and ON'O, its fans are called "SWAG" after the debut song, and its group color is white. The vocalists are TETTA, REI and EIKU, with HAYATO and NAOYA handling rap and dance.

Career

• 2018: The group was formed on April 29 as a joint unit. It first performed the new song "I'M SWAG" at a two-man live show by EBiSSH and Satori Shonendan, and debuted as a seven-piece on November 21 with the first single "I'M SWAG".
• 2019: In February the group announced its second single "Dark Knight" and held release events. The third single "Category/My Love" came out on October 16 and reached No. 1 on the Oricon weekly singles chart. The group also held its first five-city national tour and a Zepp tour. On December 31, KOHKI (Koki Hayashi) graduated to focus on his studies and retired from show business, leaving six members.
• 2020: In January the group announced it would focus solely on ONE N' ONLY, putting Satori Shonendan and EBiSSH on hiatus. The first album "ON'O" was released on April 15 and debuted at No. 12 on the Oricon weekly album chart. During the pandemic the group held its first online live show without an audience on July 26, followed by more online shows in September and December.
• 2021: In May the group held its first in-person one-man show in about a year and a half, and in October performed at Zepp Osaka Bayside. TikTok drove a major increase in overseas fans.
• 2022: The group performed in São Paulo, Brazil. "What's Your Favorite?" was used as a TV drama opening theme and "Step Up" as the theme of the anime "Duel Masters WIN".
• 2023: The film "Battle King!!-We'll rise again-", starring all members, was released. The group launched its fifth-anniversary project "5 N' 5", toured three Brazilian cities in April on its first Latin American tour, and in October began its first 47-prefecture tour, "ONE N' SWAG Hook Up!!!!!!".
• 2024: The tour ended on April 27 at Pacifico Yokohama National Convention Hall. The third EP "Fiesta" was released on October 2. In December the group held Christmas concerts and announced a spring 2025 hall tour with a planned first show at Nippon Budokan.
• 2025: A two-part second film series, "BATTLE KING!! Map of The Mind", was released in February and March. On March 4, KENSHIN (Kenshin Kamimura) left the group over a serious compliance violation, leaving five members. On April 7 the group announced its major debut on Universal Music/Polydor Records.

Musical Style

The group promotes "JK-POP", a blend of J-POP and K-POP, and is known for strong dance performance alongside singing and rap. Its songs range from hip-hop and R&B party tracks to ballads, and "Fiesta", made after its Latin tour, incorporates Latin pop elements. It has also built a global presence through TikTok and YouTube, and has released Portuguese-language versions of its songs.