Byul showed support for her husband Haha.

Yesterday, Byul attended Skull&Haha's "Regguerrilla Concert" held at a university in Seoul, supporting her husband Haha.

It hasn't been long since Byul gave birth to her son, but many who saw her revealed that she maintained her beauty and clay-like skin.

Internet users who heard of this commented, "I saw Byul come. What a beautiful couple!," "That takes dedication, it hasn't been that long since she gave birth," etc.

Photo Credit: Byul Twitter