SISTAR Dasom and T-ARA Hwayoung proved their close friendship.

On July 16, T-ARA Hwayoung posted on her Twitter "It's 5AM right now, we're filming for Idol Olympics. Dasom and I are playing like this," along with a photo.

In the revealed photo, Hwayoung and Dasom are smiling brightly. They are wearing nametags along with brightly colored shirts as participants of the idol olympics. 

Hwayoung also posted "I'm posting a photo of Dasom because she came out well. You don't have much time left until the first filming of the drama, right? Do well. I love you Dasommm," along with a single photo of Dasom.

Those who saw the photos commented "The pretty girls are close," "They are so sweet," and "It must be fun being with a friend."

Photo Credit: Hwayoung Twitter