Kim Jeong Hwan, better known by his stage name Yohan, was a South Korean singer and a member of the boy group TST (formerly known as Top Secret).

He made his idol debut in 2013 as vocalist and dancer of the group NOM (No Other Man), alongside groupmates Ain and K. Due to several challenges, the group eventually disbanded in 2016. Subsequently, Yohan, Ain, and K joined JSL Company together and formed the group 7STONE, which later changed its name to Top Secret. Yohan debuted as a vocalist and dancer of Top Secret in 2017 with the mini album "Time's Up".

He also ran a YouTube channel together with Ain called "YO-I".

Tragically, Yohan passed away on June 14, 2020, due to undisclosed reasons.

(Source: MyDramaList) Edit Biography