HYO (SNSD) ‘Second (Feat. 비비 (BIBI))’ MV 4K Link to Youtube HYO 효연 – ‘Second’ – Performance video – DGG MV 4K Link to Youtube HYO 효연 ‘Second (Feat. 비비 (BIBI))’ MV Behind Link to Youtube
Update: Added HYO 효연 – ‘Second’ – Performance video – DGG MV + Behind the scenes video