H1-KEY, a dynamic South Korean girl group managed by Grandline Group (GLG), burst onto the scene on January 5, 2022, with their debut digital single "Athletic Girl". The name H1-KEY is a nod to the concept of "high-key" representing a healthy and confident beauty, as well as conveying positive connotations like "very", "really", "clearly", "in the open", and "intense". Their dedicated fanbase, known as M1-KEY, are considered the keys that accompany H1-KEY on their journey, uniting to explore the world of music together. Originally composed of members Seoi, Riina, Sitala, and Yel, the group sadly bid farewell to Sitala on May 25, 2022, only to welcome Hwiseo as the newest addition a month later. The group reached a significant milestone on September 5, 2023, achieving their first win with the empowering track "SEOUL (Such a Beautiful City)". Immerse yourself in the captivating world of H1-KEY, where talent and charisma collide to create unforgettable music experiences.