This month, Korean boyband BTS (Bangtan Boys) dropped another hit track to bless us all. And today, Love Yourself: Her gained a top spot on the Billboard 200 album chart. Whew. They've really come a long way since they started.
To celebrate with the A.R.M.Y (Adorable Representative M.C. for Youth), let's take a look back at their notable hair transformations through their four years of existence as a group.