jangan follow aku pls i'm mentally deranged... unless you're ok if i talk about Lee Dong-hyuck (Korean:ย ์ด๋ํ; born June 6, 2000), known professionally as Haechan (ํด์ฐฌ), is a South Korean singer. He is a member of South Korean boy band NCT and sub-units NCT 127 and NCT Dream.