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Sejeong, Park Jihoon, and Kim Youngchul will guest on JTBC's 'Idol Room'
Sejeong, Park Jihoon, and Kim Youngchul will guest on JTBC's 'Idol Room' Kim Sejeong, Park Jihoon, and Kim Youngchul will guest on the soloist special of JTBC's 'Idol Room' and participate in the 'Idol 999' audition. Their episode will air on December 3 at 6:25 PM (KST). Kim Sejeong will represent ballad, Park Jihoon will represent medium dance and Kim Youngchul will represent EDM trot. Watch the show to find out who joins 'Idol 999'!