Lee Jong-hyun is a South Korean musician, singer-songwriter and actor. He was the former lead guitarist and vocalist of South Korean rock band CNBLUE. He made his acting debut in an omnibus movie Acoustic in 2010, followed by his television debut in the Korean drama A Gentleman's Dignity in 2012. He appeared in television dramas Orange Marmalade (2015), Lingerie Girls’ Generation (2017) and Evergreen (2018).

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.