Secret (시크릿)

After more than a decade away, Secret is preparing to return — a rare second act for a girl group that spent the early 2010s as one of TS Entertainment's most commercially visible acts. The group debuted on October 13, 2009, and built a devoted fanbase known as Secret Time across a run of dance-pop releases before going quiet for roughly twelve years. A 2026 comeback, anchored by a reconfigured lineup, has brought the group back into public view.

Debut and Formation

Secret launched in October 2009 under TS Entertainment with an original four-member lineup. Over time, the group's most publicly recognized configuration settled around leader and main dancer Hyosung (Jeon Hyo-seong), vocalist and visual Sunhwa (Han Sun-hwa), main vocalist and youngest member Jieun (Song Ji-eun), and a fourth position that cycled through changes across the group's active period. The structured lineup — with Hyosung holding the roles of leader, face of the group, lead vocalist, and main dancer — gave Secret a relatively clear internal hierarchy typical of mid-generation idol groups.

Music and Activity

Secret's output during their active years occupied the dance-pop and electropop space that defined much of the early 2010s Korean girl group landscape. The group maintained a schedule of releases and public appearances throughout their peak period, building recognition through performance-driven promotions consistent with the TS Entertainment roster approach of that era.

The group's activity slowed considerably after their initial run, and both Sunhwa and Jieun ultimately departed, leaving the group's status uncertain for an extended period. That long silence — spanning roughly twelve years between their effective hiatus and their announced comeback — makes the 2026 return an unusual case in an industry where most inactive groups formally disband rather than reconvene.

Restructured Lineup and 2026 Return

The most significant development in Secret's recent history is the addition of Yebin, revealed publicly through the group's official YouTube channel in June 2026. Born in 2002, Yebin is thirteen years younger than Jeon Hyosung, a generational gap that marks this iteration of Secret as a substantially different configuration from the group's original form. Yebin arrived with prior industry experience — she competed on a JTBC audition program and had released material as a solo artist before joining the group. Her introduction video, in which she performed a cover of Taeyeon's "U R," drew attention for the stability of her live vocals.

Hyosung offered public support for Yebin at the time of the announcement, signaling continuity of involvement from at least one of the group's longer-standing members. The comeback is described as the group's first in twelve years, positioning this lineup — and Yebin's addition — as the foundation for whatever the next phase of Secret's activity looks like.

Members

Current members as of 2026:

• Hyosung — leader, main dancer, lead vocalist, face of the group
• Yebin — vocalist; joined 2026, born 2002

Former members:

• Sunhwa (Han Sun-hwa) — vocalist, visual
• Jieun (Song Ji-eun) — main vocalist, youngest member of the original lineup

*Note: The structured data also lists Hyolyn, HyunA, and Nicole as members with no further role detail or departure context available in the provided material.*