miss A's Min, 15&'s Park Ji Min, and Baek Ah Yeon revealed their sister-like looks.

On December 14, Baek Ah Yeon posted a picture on her Instagram.

In the picture, Min, Park Ji Min, and Baek Ah Yeon are wearing the 'ONE MIC' shirt. They're all making blank or rebellious faces at the camera with their cute looks, arousing laughter.

Internet users who saw this commented, "All three of them are so cute," "They really look like sisters," and "I want to go to JYP concert too."

The three performed at JYP Entertainment's agency family concert "2014 JYP NATION - ONE MIC."