[노래방 / 반키내림] Don't Say No - 윤건,서현...
Don't Say No (Remix) - 윤건 & 서...
[ITAsub] Don't say no - Seohyun &...
Seohyun and Yoon Gun-Don't Say No...
SeoHyeon (서현) and YoonGun (윤건) Don&#3...
[DUET] Yoongun & Seohyun 윤건 &...
[a2►] Seohyun and Yoon Gun - Don'...
Yoon Gun và SNSD Seo Hyun tiết lộ ca ...
Seohyun talking about her duet with Y...