 She embarked on a solo singing career in 1996, and her hit song "Emotion" (released in 1999), contributed to the nationwide spread of techno music.As an actress, Yoo appeared in supporting roles in movies and television dramas, notably in the comedy film "Sex Is Zero" (2002) and its sequel "Sex Is Zero 2" (2007).She was also a popular radio host on the MBC program "Good Weekend, It's Kim Kyung-sik and Yoo Chae-yeong", known for her quick wit and self-deprecating humor.