ONE LOVE ONE HEART (abbreviated as LOVE ONE) was a Japanese co-ed pop group formed in 2022 as the first joint project between talent agency Stardust Promotion and Avex. The group emerged from a nationwide audition process launched in winter 2020, conceived as a “next-generation evolution project” that aimed to go beyond conventional gender boundaries in idol-style pop. ONE LOVE ONE HEART officially debuted on January 28, 2022 with ten members, five male and five female, presenting themselves as a unit focused on uniting different forms of entertainment such as music, dance, and acting. In June 2023, ONE LOVE ONE HEART continued as a nine-member formation. One of their notable releases, Yakusoku no passport (2026), reflected their core themes of connection, hope, and emotional sincerity. The group’s name symbolized shared love and unity across differences in background, culture, and values. Based conceptually around Shibuya, ONE LOVE ONE HEART also gained wider visibility in 2024 when live clips of their music circulated on social media, leading to viral attention and their first appearance in streaming services' Viral Top 10.