HOA is a Korean rock band formed in 2015, consisting of four members: Jinoa (vocals), Gyumok (keyboard), Kim Hwi (guitar), and Jeong Jongbeom (drums). They debuted on May 30, 2016, with the single "Take the Subway Line 9 without Your Shoes." In 2016, they gained recognition when they were selected as EBS Space Gonggam's Hello Rookie Of The Month, highlighting their musical talent. Their EPs The Day Comes and 2126, praised for beautiful harmonies and rich band sounds, along with contributions to the OST of the drama Hello, My Twenties! 2, helped them build their career. In 2021, they released their first full album, Flower, which captured their most natural sound and showcased their musical versatility. The following year, they released singles "Cherry Shine" and "Bloomer," demonstrating their unique emotional expression. Two years later, they put out a four-track EP I Don’t Know Why. The track "My Romance Is Not Over" from their EP of the same name, released on August 24, 2025, debuted at number 4 on Melon’s Top 500 chart on the day of its release.