'Single's Inferno 3' star Lee Jin Seok reveals what surprised him the most about other male contestants

B.I.G's J-Hoon leaves GH Entertainment following Heedo & Jinseok

B.I.G postpones their year-end concert after maknae Jinseok tested positive for Covid-19

B.I.G unveils a glowing 'FLASHBACK' teaser photo of Jinseok

Triple7 reveals sleek new teaser photos of B.I.G's Heedo and Jinseok for upcoming debut 'PRESENTE'

'Under Nineteen' star Ji Jin Seok walks to you in 'Just' MV

'Under Nineteen' star Ji Jin Seok reveals soulful 'Here' MV

Ji Jin Seok reveals trailer for 1st mini album

'Under Nineteen's Ji Jin Seok teases 'Pretend You're All Right' in live clip

Kids give their honest review to Ji Jin Seok's debut track 'Good Bye' in person

'Under Nineteen's 'Little Crush' Ji Jin Seok makes solo debut with sweet ballad 'Good Night'

Ji Jin Seok showcases soothing vocals in second MV teaser for debut single 'Good Night'