Jaeyun (TO1 Member) Age, Bio, Wiki, Facts & More


Jaeyun (재윤) is a member of the boy group named TO1 (TOgether as 1) (티오원), formerly known as TOO (Ten Oriented Orchestra) (티오오) created from the survival show World Klass. This group consists of 10 male members: Jaeyun, ChihoonDonggeonChan, JisuMinsu, J.You, Kyungho, Jerome, and Woonggi. They debuted on April 1st, 2020 with the 1st mini-album ‘REASON FOR BEING: 仁 (Benevolence)‘. The group is under n.CH Entertainment and Stone Music Entertainment. On March 28, 2021, they announced they changed their name to TO1, at KCON: TACT 3.

His stage name is Jaeyun (재윤). His birth name is Lee Jae Yun (이재윤). He was born on August 16th, 2000. His age is 21 years old as of 2021. He is Korean by Nationality. His Zodiac sign is Leo.

He is the Leader, Main Vocalist of the Group.

Check out and follow Jaeyun’s Social Media accounts :

Instagram: N/A

Twitter: N/A

Youtube: N/A

Facebook: N/A

Early Life :

He was born in South Korea.

He attended an international school for 9 years.

He studied in Myanmar for a while and can speak some Burmese.

He studied jujitsu for 3 years.

Physical Appearance:


He is young, smart, and handsome. He is popular among youths. His looks make him look younger than his actual age. He has black eyes and brown hair. 

His height is 175 cm (5’9″) and his weight is 63 kg (139 lbs). His blood group is B.

Family, Religion & Girlfriends:

He has an older brother and an older sister.

Not much known about her family and her personal Relationship.


  • He speaks English, Korean, and Burmese.
  • He is a fashionista.
  • He is Korean.
  • His specialty is Vocals.
  • He was part of a school band with TXT‘s Beomgyu:

  • He admires Jungkook from BTS.
  • His representative animal is a Hamster.
  • His favorite ice cream flavor is Cheesecake.
  • Some of his favorite artists are Justin Bieber, Bazzi and Gallant.
  • He used to share a room with Donggeon, Jerome, and Chihoon.
  • For the updated dorm arrangement, please visit TO1 Profile.
  • He ranked 11th in World Klass.
  • He was added to the group 2 days after the final lineup be revealed.
  • He was appointed as a new host for the After School Club in October 2020.
  • His motto is Efforts won’t betray me unless I betray it first!”.

Check out TO1’s Social Media Accounts below:


Twitter: @to1_offcl / @to1_members

Instagram: @to1_offcl / @toomembers

Facebook: TO1offcl

Youtube: TO1 official

Fan Cafe: TO1

V Live: TO1

TikTok: @to1_offcl

TO1 Fandom Name: TOGETHER, formerly TOOGETHER

TO1 Official Colors: Egyptian Blue, White, American Yellow, Persian Red, Black

TO1 Current Dorm Arrangement (March 2021 Jaeyun and Minsu vLive):

  • Jisu and Manager
  • Minsu, Donggeon and Chan
  • Chihoon and J.you
  • Kyungho, Jaeyun, Jerome and Woonggi

Latest Korean comeback:

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