koreanboygroup BTS’ Rebounds to No. 1 On Hot 100 with “BUTTER” 4 years ago BTS lands No. 1 on the Billboard HOT 100 chart again with the summer hit “Butter” extending its eighth… Top 5 K-Pop Boy Bands from 2010 to 2015 4 years ago Apart from EXO, Winner, Monsta X, GOT 7, DAY 6, and Seventeen (svt), the 2010 to 2015 half-decade was overloaded…