BTS Jin celebrates solo debut of 'Happy' with fan showcase, lead track… ArirangNews 0 14 11.18 23:19 https://www.youtube.com/watch?v=8EYemq6qTMQ + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCzznO4xSV8BKnUBPy… + 1 BTS Jin celebrates solo debut of 'Happy' with fan showcase, lead track tops iTunes chart