Duo 15& member Baek Yerin shared a unique hair color.

On August 13, Baek Yerin posted a picture on her Instagram with, "It's like a sea. I want to be a person with sea on the head, but it's becoming more green. What should I do."

In the picture, Yerin is taking a mirror selfie and showing her long blue-ish green hair on the chair.

In response, people said, "You are a green goddess", "You are pretty no matter what", and "You are like a mermaid".

Baek Yerin participated in the '2014 JYP Nation - One Mic' concert on August 9 and 10.