Hyeongjun was a trainee for 1 year and 3 months before going on Produce X 101.
Hyeongjun is really close to fellow starship trainee Ham Wonjin.
He has two older sisters.
Hyeongjun played soccer when he was younger.
His nicknames are ZzoPoo (Chocolate Toy Poodle), Junvely, Song Star and Lemon Vitamin.
He was Jeong Sewoon‘s backup dancer.
He was the High School Calligraphy club president.
He’s a former member of X1.
He participated in the survival show Produce X 101, His final rank was 4th and made it to the final line-up X1.
Hyeongjun's role model is MONSTA X's Joohoney.