Park Soo Jin, runner up of MBC audition program "Great Birth 3", staged her debut performance before album release.

On today's "M Countdown", Park Soo Jin performed debut song "My Story". "My Story" is the collaboration of Brave Entertainment's head Brave Brothers and producers Galactika and Miss Lee, seeking to set itself apart from traditional ballad style into a more progressive R&B ballad genre.

The piano and EP's melody sets the mood for Park Soo Jin's soulful voice, which explodes in the climax of the song.

In the teaser clip revealed today, actor Kim Sung Kyun explodes into hysterical laughter with tears streaming down his face, saying the word, "Love".

Previously, Park Soo Jin had signed with Brave Brothers' Brave Entertainment after MBC's audition program. She featured on KBS "Immortal Songs 2" and MBC "Human Documentary", awing viewers with her depth and skill.

Meanwhile, Park Soo Jin kicked off her career with "M Countdown" today. The track and music video featuring Kim Sung Kyun, Ji Seung Hyun, and Kang Han Na will be released tomorrow.