Girl group SECRET performed their new song, "I Do I Do" for the first time today.

On December 13, SECRET performed their new song, "I Do I Do" on KBS "Music Bank" for the first time.

During the performance, they revealed their cute 'penguin' dance and 'heart' dance and melted the hearts of many fans.

Their cute and lovely image can be seen from their new album concept and many believe that this will be another hit song.

On the other hand, they will continue to make their comeback performances on other music programs as well.