Kim Hyo-yeon (김효연; born September 22, 1989, in Incheon, South Korea) is a singer, dancer, model, and member of the South Korean idol group, Girls' Generation. Hyoyeon once attended a hip hop dance school, where she met miss A's Min. The two formed a dance duo called Little Winners (리틀위너스) and performed at various dance showcases. Prior to her debut, Hyoyeon traveled to Beijing, China in 2004 with Super Junior's Siwon to learn Mandarin.