Jung Joon-young KakaoTalk chatrooms
The Jung Joon-young KakaoTalk chatrooms was a South Korean entertainment and sex scandal publicized in 2019 as part of the Burning Sun scandal. The two scandals were tied together by the release of revealing KakaoTalk messages that exposed alleged crimes at the Burning Sun nightclub, and separately, by K-pop singer and entertainer Jung Joon-young and his friends and colleagues.
Source: Wikipedia — Jung Joon-young KakaoTalk chatrooms (CC BY-SA 4.0)