Nicknamed Kuhn, he is the lead rapper for the TOP Media boy band UP10TION, the group debuted in 2015 with the mini album Top Secret. The group would go on to release several more successful mini albums and singles.
The members of UP10TION made their debut in July 2015 on the show Masked Rookie King.
A skilled presenter and host, he appeared as the Fixed Friday Weather Man for Good Morning Korea and was Fixed Wednesday Co-Host for KBS Cool FM in 2016.
Born in Ansan, South Korea, he is an only child.