sexy My Boy" in which she was portrayed as a cross-dressing girl became a hit for her masculine voice and dance.
However, she made her comeback within 2 weeks on another live in maiden dress where she totally reversed her previous image.
In the 2010s, Eun-ooh switched her focus from being a singer to mainly working as a composer, songwriter, vocalist, and producer for K-pop music and Korean TV series.
For example, she worked on the OST "Everyday" for Korean Drama A Gentleman's Dignity in 2012.
[3][4] Since then, she has been writing melodies, lyrics, and helped produce songs for some of South Korea's best known K-pop artists, such as Sistar, BoA, and Jun Hyo Seong.