Seohyun
Girls' Generation
2nd Gen (commonly-cited era, approximate)Verified facts
Real nameSeo Ju-hyun
Birthdate1991-06-28
Group debut2007-08-05
Group size4 members
Stats — real computed numbers, never invented ratings
All facts are sourced from public profiles/Wikipedia and verified before being added. Age and years active are computed from today's date, not a fixed snapshot.