Karen is a singing enthusiast, she studied singing with different teachers since 2017. Now, she had studied under more than ten teachers, including some stars vocal instructor : Jeffrey Choi, Steve Ip, Beilosi, Jojo Pang, Jose Leung, etc.

Karen is capable of teaching singing in different ways as she has learned different vocal learning systems from different teachers.

She is good at Estill voice training and mixed voice techniques.