Hailing from South Korea and Japan, Baby Boo was a talented girl group that made their debut under Hyunda Company on June 5, 2015 with the catchy digital single "Boo Boo Boo". The group initially consisted of four members, but later expanded with the addition of Hajin and Jelly. Their sixth digital single "Ring-Ring-Ring" showcased their versatility and energy, although it was bittersweet as member Ji Eun had already departed earlier that year. Unfortunately, in 2020, the remaining members Shine, Ha One, and Hyo Kyung announced their departure from Baby Boo, leading to the group's unofficial disbandment. However, fans can still follow Shine's journey as she continues her music career as part of the dynamic dance duo Happty, going by the stage name Bada.