Na Ha-eun, known mononymously as Haeun, is a South Korean singer and dancer under High Up Entertainment. She is the maknae of the girl group UNCHILD. She became popular for performing dance covers during the breaks of the Melon Music Awards 2017, 2018 and 2019. She is also known for being a contestant on the reality survival shows Star King (2011) and K-pop Star 4 (2014).