【TVPP】Hyorin(SISTAR) - Hello, Goodbye, 효린(씨스타) - 안녕 @ I Am a Singer 3

【TVPP】Hyorin(SISTAR) - Hello, Goodbye, 효린(씨스타) - 안녕 @ I Am a Singer 3 SISTAR # 166 : Hyorin participates 'I Am a Singer 3'. She sings her song 'Hello, Goodbye'. @ I Am A Singer 20150130 SISTAR : Hyorin, Soyou, Bora, Dasom Watch More Clips : http://goo.gl/QedbJd Homepage : http://www.starship-ent.com/sistar/ FaceBook : https://www.facebook.com/officialsistar Twitter : http://www.starship-ent.com/sistar/