Chen pulled off various looks, from presenting a pure charm to stepping it up to a more powerful charismatic appeal.  Chen commented in an interview regarding his works singing for drama OSTs and such, saying, "2016 was a year in which I became more ambitious. Once the activities of 'Hey Mama' had ended, we went straight to discussing our next project."

He recently collaborated with Dynamic Duo, and the collaboration "Nosedive" had topped music charts. Chen honestly said that he had never been fully satisfied with any of my recordings, and that there was a lot of work to be done for his vocals.

With releasing numerous OST songs, the singer mentioned, "I would like to focus more on the overall message of the song rather than the drama or specific characters. Since I am not an actor, I feel it is right for me to analyze it from a musical approach. I believe once a song is completely understood, then it can be used to fit into the appropriate scene."