Hahah, BTS means a lot of things to me already:
BTS=Back To School
BTS=Both Team Score (For those of us into Sports Betting)
And when I started learning bout crypto:
BTS=Bitshares.

Pretty recently, I found out about this musical group called BTS too as you've mentioned. Your post is just the second place I'm seeing this group. Maybe @dan should sponsor them and change their name. Lol