HYO 효연 'Retro Romance' MV SMTOWN KPOP 0 7 0 09.26 18:00 https://www.youtube.com/watch?v=_1ZckkIf1vU + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCEf_Bc-KVd7onSeif… + 2 HYO 효연 'Retro Romance' MV 0