ONE N’ ONLY is a five-piece boy band comprised of TETTA, REI, EIKU, HAYATO, and NAOYA. Formed by renown Japanese talent agency Stardust Promotion.

Since their debut in 2018, they’ve boasted their unique ability to blend genres, starting with JK-POP. They have since evolved to Jatin Pop, a blend of Japanese and Latin pop, after finding international TikTok success.

The band’s music videos have garnered views from Asia, Latin and North America, and Europe, with a total view count exceeding 20 million. They are Japan’s Number 1 most followed male musical artist on TikTok with over 5.8 million followers and 620 million views.