Singer Seo In Young revealed her perfect body proportions in kill heels.

On November 5, Seo In Young posted on her Instagram, "Going up today too" along with a picture.

In the picture, Seo In Young is wearing black kill heels and skinny jeans, showing off her skinny and long body.

Internet users who saw this commented, "Come down, it's dangerous," "You have such a nice body," and "I'm so jealous."

Seo In Young made her comeback last month.