Hyorin released another teaser image for "youknowbetter."

The scribbles on her body are the lyrics to "youknowbetter," which portrays a deep message about all the scars she's suffered throughout her career.

The former SISTAR member's 1st digital single will be fully released on May 23. In the meantime, you can also check out her interview MV teaser for "youknowbetter" here.