I.O.I former member Jeon Somi, "a strange promise" is Hot Topic.

● Q: What is your “commitment” when you get first in a music program?

● A: Mother keeps "umbilical cord" and publishes it. Because the song title of solo debut is "birthday".

● Q: That's kinda.

● A: If this pledge is overdue, we will publish a photo of "one-year-old day".