Stage name: Jaehyun [97'liner]
Birth Name: Jung Yoonoh
Nationality: South Korean
Years active: 2022 - present
Entertainment: SM– His birth name is Jeong Jae Hyun, but he legalized to Jeong Yoon Oh (정윤오)
– His nicknames are: Casper, J, Jeffrey, WooJae, Peach boy, Jaeyuk, because he's good at making meat
– Jaehyun lived in Connecticut (USA) from when he was 5 till 10 years old
– His English name is Jay. (When he studied in US, his teacher couldn't pronounce his real name "Jaehyun", so the teacher called him simply "Jay")
– He has dimples when he smiles
– Specialty: Rap, Piano, Basketball
– Strengths: Happy Virus, Cutie
– Weaknesses: Very sensitive at times
– A body secret: Lots of hair
– Jaehyun speaks fluent English
– He said he's a bad liar because every time he lies, his ears turn red
– His sleeping habit is sleeping while hugging the blanket
– He is good at swimming
– He usually wakes up very early
– He eats a lot (sometimes he steals other members' food)
– His hobbies are playing the piano and playing sports
– His favorite sport is basketball
– His favorite foods are: Meat, Spicy Pork, Peach, Green Tea Ice Cream
– His favorite season is Spring
– His favorite color is White
– Favorite Artist: IU
– Favorite Actor: Leonardo DiCaprio
– He was part of the Predebut Group SMRookies
– He also appeared on the "Micky Mouse Show" prior debuting
– He aditioned with rapping for SM but ended up being primarily a vocalist
– He is the only baritone in NCT 127 and U's Vocal line
– His voice can be described as being deep, warm and mature and is therefore quite in contrast to the rest of NCT's vocal line
– He debuted with NCT U first in 2016 and debuted again with NCT 127 later the same year
– Taeyong said that Jaehyun has the most muscles out of all the NCT members
– Ten thinks that eventually, Jaehyun will start taking off his clothes on-stage
– Mark said that Jaehyun is good at taking care of the younger members
– Jaehyun is the member who has the best alcohol tolerance, up to 3 bottles of Soju
– Jaehyun has a black belt in taekwondo
– GOT7's Bambam & Yugyeom, BTS's Jungkook, Seventeen's The8, Mingyu, DK, NCT's Jaehyun and Astro's Cha Eunwoo (the '97 liners) are in a group chat
– Jaehyun and Seventeen's DK went to the same school. In a radio interview, DK said that back then he didn't dare to speak to Jaehyun because he was too handsome
– He was an MC for the radio show NCT's Night Night with Johnny
– Wouldn't switch bodies with anyone
– The song that made him wanna become an artist: R. Kelly's "I Believe I Can Fly"
– His motto: "To become someone big"
– Jaehyun and Haechan used to be roommates
– Jaehyun was an MC for "Inkygayo".
– Update: In the new NCT 127 dorm Jaehyun & Jungwoo share a room. (Upper floor)
– NCT U Line-ups he was apart of: The 7th Sense, Without You, Timeless, Boss, New Dream, New Love, Coming Home
– Sub-Unit: NCT U, NCT 127