120419 [Video] Taeyeon Tiffany Seohyun @ Mnet Wide & E!TV News - Twinkle Mini Album

120419 Mnet WIDE - 소녀시대 유닛 '태티서' 결성 (TaeYeon Tiffany SeoHyun)

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120419 E!TV K-STAR news - 소녀시대 '태티서' 유닛 결성 (TaeYeon Tiffany SeoHyun)  
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