DAY6 - 행복했던 날들이었다 #SBS_Inkigayo #Inkigayo_EP984 데이식스 - 행복했던 날들이었다 #DAY6_COMEBACK SBS Inkigayo(인기가요) is a Korean music program broadcast by SBS. The show features some of K-pop artists’ performance every Sunday, 15:40pm. Check out this week’s Inkigayo Line up and meet your favorite artist! ☞ 'SBS Inkigayo' official website : http://goo.gl/4FPbvz ☞ Other stages of K-pop singers : https://goo.gl/n2mUBS