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Yook Sungjae (BTOB) Profile, Bio, & Facts

Yook Sungjae (BTOB)

Yook Sungjae (성재) is a South Korean singer and actor under IWill Media. He is a member of the boy group BTOB and its sub-unit BTOB-BLUE. He debuted solo on March 2, 2020 with the  album ‘Yook O’Clock’.

Yook Sungjae (BTOB) Profile

Stage NameSungjae (성재)
Birth NameYook Sung Jae (육성재)
OccupationSinger, Actor 
BirthdayMay 2, 1995
Active Years2012–present
Age28 (in 2024)
Zodiac SignTaurus
Height180 cm (5’11”)
Weight68 kg (149 lbs)
Blood TypeA

Yook Sungjae (BTOB) Facts:

Early Life

– Yook Sungjae was born in Yongin, Gyeonggi-do, South Korea.
– He attended Yongin Seowon Elementary School and Yongin Seowon Middle School.
– He graduated from Hanlim Multi Art School.

Personal Life

– He later pursued a bachelor’s degree at Dongshin University.
– He transferred from Changhyeon High School to Hanlim due to the requirement to dye and perm his hair as a trainee. Despite his wish to stay, the teacher disapproved of his hair and he had to transfer to Hanlim.
– His family includes his parents and an older sister, Sungyoung, who is three years older than him and studies in Columbia University in New York.
– He got inspired to become a singer in elementary school when he was walking down the street and suddenly heard Kim Dongryul’s song. (GQ KOREA)
– His father is the CEO of an IT company that deals with semiconductors. The company is valued at around 15 billion won (approximately $13 million USD), and his grandparents own a fishing ground spanning about 20,000 yards.
– He would like to have the ability that his body doesn’t suffer even if he skips sleep because when he encounters a difficult situation, he loses sleep.  (Arena Korea)
– The member who made a strong impression on him at first was Peniel because he was foreign and had a modern image.
– Yook Sungjae started playing golf after Peniel recommended him to and fell in love with it. 
– He is skilled in playing the acoustic guitar and the bass.
– If he could go on a vacation with one member, he would choose Hyunsik.
– He would be the owner of a fishing ground if he wasn’t a singer because he loves fishing. (Marie Claire 2017)
– His role models in acting include Lee JaeHoon and Lee Minki. (Nylon)
– If the members were girls, he would date Ilhoon because he looks the most decent with a wig on.
– He always listens to Sia’s ‘Snowman’ when the weather gets cold. (SINGLES KOREA)
– If he had a younger sister, he would introduce her to Eunkwang among all the members. 
– He would date Changsub among all the members if he was a woman because it’ll be fun. (Cosmopolitan Korea)
– He has a Snow Bengal cat named Sami.
– He wants to act as a Marvel hero. (Arena Homme Plus)
– He was classmates with Wanna One’s Ong Seongwoo and Victon’s Heo Chan at Hanlim Arts School.
– He is known as the ‘Tom and Jerry’ of the group with Changsub.
– Sungjae’s ideal type is a girl who is very direct and would be better if she was cute and nice. (1ST LOOK)


– Yook Sungjae is the vocalist, face of the group and maknae in BTOB.
– He briefly served as the group’s leader until Eunkwang’s return.
– He appeared on “We Got Married” with Red Velvet’s Joy.
– He joined “The Law of the Jungle” and the reality show “All the Butlers/Master in the House.”
– He was part of the parody band Big Byung, along with VIXX’s N, Hyuk, and GOT7’s Jackson.
– He participated in “King of Masked Singer” as the Bee in 2015.
– He, Hyunsik, Minhyuk, and Changsub acted in the drama “Monstar”.
– He was a co-MC with former Super Junior member Kangin and f(x)’s Amber on “A Song For You”.
– He was eliminated in the final round of a JYP open audition.
– Sungjae has appeared in many dramas including ‘School 2015: Who Are You’, ‘Goblin’, ‘The Village: Achiara’s Secret’ and ‘Mystic Pop-up Bar’.
– He enlisted in the military on May 11, 2020, alongside Hyunsik, and was discharged on November 14, 2021.
– In November 2023, it was announced that he, along with the other BTOB members, did not renew their contracts with CUBE Ent and left the company after 11 years.
– He joined IWill Media in December 2023.

Likes & Dislikes

– His favorite color is khaki. (BuzzFeed Celeb)
– He loves fishing and mainly does freshwater bass fishing.
– One of his favorite American dramas includes Dexter. (GQ KOREA)
– His favorite Marvel heroes are Iron Man and Spiderman.  (Arena Korea)
– He is passionate about playing golf. (Cosmopolitan Korea)
– He likes deep voices in singing like Jung JunIl and Kim DongRyul. 
– He loved to eat potato soup made by his grandmother. (Singles)
– He likes shopping.
– He likes playing ‘God of War’ and ‘Hogwarts Legacy’ on playstation. (Cosmopolitan)


– He got the nickname “Yook Taekwang” based on his role in “School 2015: Who Are You,” where he played Gong Taekwang.
– He got nicknamed ‘Short-tempered Sungjae’ because he gets angry easily. (Cosmopolitan)
– His nickname ‘Yookjaltto’ means ‘handsome weirdo’. (Look Me Up)

Personality & Habits

– He has a high self esteem and believes that one cannot be happy if he has low self esteem. (Arena Homme Plus)
– Yook Sungjae doesn’t enjoy going for gatherings or company dinners and prefers to spend time by himself.
– He is short tempered and once broke the wall in the practice room. (Cosmopolitan)
– He sometimes suffers from insomnia and his health take a hit because he tends to think deeply.  (Arena Korea)

Major Works

– His popular songs include ‘Come with the wind’, ‘Love song’ and ‘Photograph’.


– He has won many awards for his acting career including ‘Top Excellence Award, Best Actor in a Miniseries’ at the MBC Drama Awards in 2022, ‘Star of the Year Award’ at the Korea Drama Awards and ‘Male Acting Idol’ award at the Korea First Brand Awards in 2017.
– He also won the ‘Best Couple Award’ with Red Velvet’s Joy at the MBC Entertainment Awards for the show We Got Married in 2015.

Instagram: yook_can_do_it
Weibo: yooksungjai
Twitter: BTOB_6SJ

Streaming Platform Links
Genie | Spotify | Bugs | Melon | Apple Music | Deezer

Yook Sungjae Photos

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Lilian Chen

Yo! I'm Lilian, an Ahgase and a curious wordsmith on a never-ending quest for knowledge. Don't hesitate to spot any slip-ups in my work and feel free to reach out with additional facts & insights! ^^

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