Kim Sejeong

Kim Sejeong (김세정) pulled off one of the cleaner second acts of the Produce era. She first broke through via I.O.I, carried that momentum into gugudan, and then avoided the usual post-project stall by turning into a durable singer-actor hybrid.

That balance is why her page matters beyond survival-show nostalgia. Sejeong can still sell music under her own name, but the bigger story now runs through lead acting work, musical-theater credibility, and her 2026 move to BH Entertainment, which sharpened the screen side of her public lane without erasing the solo catalog that built her fandom.

For HITKULTR, she reads less like a former project-group member and more like a stabilized all-rounder: a recognizable voice, a bankable screen presence, and one of the few idol-generation crossovers who made both lanes stick.