Did you enjoy this video? Plz click "like"! For more awesome videos, subscribe our channels!! Daily update available! ☞ Watch more clips of Girl's Generation!! http://www.youtube.com/playlist?list=PLFDCD60F1BBA0D4BB&feature=plcp 공식홈페이지 http://www.imbc.com/broad/tv/ent/musiccore/index.html 방송시간 SAT, 16:15 Girls' Generation - Etude, Show! MusicCore(쇼! 음악중심), EP178, 2009/08/15, MBC TV, South Korea