Group Members

Yohan (TST) Profile, Bio, & Facts


Yohan (요한) was a South Korean singer, and a member of the boy group TST that debuted on January 1st, 2017, with the mini album “Time’s Up“ under KJ Music. He was also a former member of NOM.

Yohan (TST) Profile

Stage Name: Yohan (요한)
Birth Name: Kim Jung Hwan (김정환)
Occupation: Singer
Birthday: April 16, 1992
Age 31 (in Apr 2024)
Active Years: 8
Zodiac Sign: Aries
Height: 180 cm (5’11″)
Weight: 64 kg (141 lbs)
Nationality: Korean
Blood Type: O

Yohan (TST) Facts:

– He was born in Ulsan, South Korea.
– He was the vocalist in the group “TST”.
– He was fond of animals.
– He knew how to beatbox.
– He had a shared youtube channel with Ain.
– He used to introduce himself as “Sparkling Yohan”.
– His religion was Catholicism.
– He loved to watch movies in his spare time.
– He was a former member of the boy group “NOM”.
– He couldn’t swim well and was once saved by K.
– He was a fan of BTOB, INFINITE, B.A.P and Vixx.
– He was considered the best cook in TST.
– He revealed that he was in a relationship once.
– His nicknames were “Healing Yanny” and “Smile Doongi”.
– His baptismal name was John.
– He knew how to play the piano and drums.
– It was announced that he passed away on June 16, 2020, at the age of 28. The cause of death was not revealed upon the family’s request.

Social Media Handles
Instagram: yohanee0416
Youtube: YO-I요아이
Twitter: K_jeonghwan

Streaming Platform Links
Genie | Bugs | Melon

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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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