Chung Dong Hwan is a South Korean singer, dancer, model, and former member of BZ-BOYS (청공소년). He graduated from Kyungpook National University with an associate's degree in International Tourism.

He made his debut in June 2019 (under the stage name Double.D) as the group's rapper with their first digital single, "Question". They are managed by Chrome Entertainment (크롬엔터테인먼트) and have had very limited opportunities to promote since their debut. The last material they released was their mini-album, "Outlaw", in 2023.

In February 2024, the agency announced his departure from the group with no further explanation. He briefly joined Lee Ha Min and Yun Jung Hwan (now known professionally as Luven) in a project group called LCY and promoted in Japan for a few months before ending activities.

He is now focused on working as a model.

(Source: MyDramaList) Edit Biography