Girl group SECRET held their comeback stage on "Show! Music Core."

In MBC "Show! Music Core" aired today, SECRET performed their new title song "I Do I Do."

On this day, SECRET wore all-white outfits that looked like snow and showed cute dancing movements, shaking their arms.

"I Do I Do" is a bright but warm song that includes a cute 'penguin' and 'heart' dance.

Photo Credit: MBC