Debuted August 2007 under SM Entertainment with nine members — Taeyeon, Jessica, Sunny, Tiffany, Hyoyeon, Yuri, Sooyoung, Yoona, Seohyun. Their 2009 single Gee dominated Korean charts for nine straight weeks and sparked mass mainland fandom during the Korean-wave peak. Jessica left in 2014; the remaining eight reunited for 2022's 15th-anniversary album Forever 1.
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少女时代 literally means 'girl era / adolescent years,' playing on the double meaning of both the group name and 'the era when you were a girl.'
