Haeun

Kim Ha-eun (김하은), known as Haeun, is a South Korean vocalist and keyboardist born in Gongju on October 9, 1999. She is the main vocalist and keyboardist of live band LATENCY, the five-member girl group under Oddinary Records that debuted on January 8, 2026. Haeun's idol history dates back to 2014, when she was part of the pre-debut trainee group Littles. She debuted publicly with Good Day in August 2017 under C9 Entertainment. In February 2020, she joined C9's girl group Cignature under the stage name Ye Ah, participating in singles including Nun Nu Nan Na and Ariseo before departing the group in 2021. She was also part of the cover dance groups ALDL and MiMAUVE during her pre-C9 years. After leaving Cignature and C9 Entertainment, Haeun maintained personal social media activity and an independent YouTube presence before the opportunity to form LATENCY emerged through the Motchuh Do Rock! web series. That production brought together Haeun, ZZONE (also a former Cignature member), guitarist Heeyeon, bassist Semi, and Hyunjin, formerly of Loossemble and LOONA. In LATENCY, Haeun's keyboard anchors the group's melodic center. She is the primary vocal fixture in their live performances, with a tone that bridges idol pop and the more raw, guitar-driven sound LATENCY pursues. Their debut single It Was Love and the 2026 mini album LATE O' CLOCK established the group's identity as Korea's most credible live-instrument girl group.