Because most people omitted the song information as it’s pretty old, it’s Park Jiyoon’s Adult Ceremony.

LMAO out of all songs.

The song is mainly about how she is an adult now and he (her bf?) can do adult things with her, I guess it’s appropriate since Sungjong just graduated from high school…? (I haven’t actually listen to the song or read the translation, my friend told me about this because she performed that when she was in primary school for talent show and completely embarrassed her sister)

From the reports, he wore (and danced in) high heels!? If it’s true……way to kill my womanly self esteem. Forever wondering how people can dance properly with high heels.