He made his solo debut on February 15, 2019, under the name Uk with the mini-album #dawn. Uk was used as his stage name for his solo work while still promoting with 24K.
In June, Choeun Entertainment announced 24K had undergone a big line-up change. They stated that "JeongUk is planning to focus on his solo album" in their announcement. The same month, AUGUST 051 was introduced. At this point, he stopped Jeonguk and Uk as his names for promotions and started his using his full name.
- #dawn (2019)
- Mixtape Vol.1 (2016)
- He has several tattoos, including a gun on his stomach. Most of his tattoos are on his arms.
- Loves chicken
- Specializes in popping and locking