Koh Na Young was on season 6 of Superstar K in 2014. She went to Ehwa Woman's University and studied English Language and Literature. Including Korean, she in also fluent in English and knows basic Chinese.
She released her first digital single "Only For You" on August 13, 2015 for the T-ara's web drama "Sweet Temptations". This single is composed of two versions of the track "Missing You", in both Korean and Chinese.