tripleS Member Profile · S19
HaYeon
NXT
Profile
A lively mood-maker known for an outgoing personality and easy chemistry with the other members. She entered tripleS through NXT.
As S19, HaYeon is part of tripleS’s 24-member full-group system and participated in the full-lineup ASSEMBLE24, ASSEMBLE25 and 2026 ASSEMBLE26 LOVE&POP pt.1 eras.
Career Highlights
2026
ASSEMBLE26 · LOVE&POP pt.1
Participated in the 24-member “Baby Flower” comeback.
2025
ASSEMBLE25
Participated in the full-group “Are You Alive” era.
2024
ASSEMBLE24
Joined the first full 24-member album era led by “Girls Never Die.”
Member introduction
S19 · HaYeon
Introduced through tripleS’s sequential S-member system.
Official Social
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News & Further Reading
Personal SNS, member news and official references · newest first.
Personal SNSNo separate verified personal Instagram/X account is linked from the official tripleS profile.
Official Member VideoHaYeon · tripleS official profile ↗Use the official member profile and @triplescosmos channels until an individual account is officially announced.
June 2026 · Universo K-pop / UOLHaYeon joins an international interview on growth, uncertainty and ASSEMBLE26 ↗July 2026 · tripleS Japan Official FanclubHaYeon appears with Kaede in the official member video series ↗
Official / MODHAUSHaYeon · tripleS official SSS video ↗KWaveScope member profile · reviewed October 7, 2026.