Joy is a Korean singer. She is a member of the 5-member girl group Red Velvet, and serves as a sub-vocalist and lead rapper.
Unlike other members of Red Velvet, who debuted through SM Entertainment’s pre-debut team SM Rookies, she made her debut after two years and six months after undergoing traditional training. Before her debut, she was a private trainee whose only teaser photos were known. In 2014, he was the youngest child of Red Velvet, and when Yeri joined Red Velvet in the first half of 2015, he stepped out of the youngest position. She is also called the youngest Z with Yeri.