MBC every1 Tuesday drama "Please Don't Date Him" OST PART.4 "Who I Am" will be released on December 15th, which Choi Jin-soul participated in.

"Who I Am" is about talking to one’s inner self, which has become smaller in front of the world, and it is a song about a person who can't admit that they collapsed and barely manages to endure it. The emotional lyrics and Choi Jin-soul's dreamy yet captivating voice meet and completed with a sweet song.

Choi Jin-soul, who performs the OST, is a "SNS hot star" who has attracted high attention with YouTube cover videos as well as her proven ability to pass the top vocal position at Seoul National University of Arts.