@jk_blaqcat CUBE has officially said B2ST was not correct (cf. CubeUnited facebook, 120829):
Fun Fact #1: Do you know the difference between BEAST and B2ST. Many believe that B2ST is the name of the group, however, that is incorrect. The official name of the group is BEAST (all caps) and the official logo of BEAST is B2ST! Have a wonderful Wednesday!
Well they also officially changed it to "BEAST" before debuting, and there's already a bunch of BEASTs out there. Until they figure out a way to separate artists with the same name, last.fm will always be cluttered. Neither tag is wrong; just let people tag how they like.
@Welniuke The difference is that repeated artists make last.fm disgustingly cluttered. Yes of course "비스트" is right too but CUBE had tagged it officially as "B2ST" so we should respect their decision and follow it.
Also - what's the difference?
I suggest You let people tag with which tag they want. They plays aren't a competition here and if You really want to get the total plays then just add them all together. But the artists don't get anything by how many plays they get here so there's no point in correcting what tag is wrong or right. Keep Your tag's the way YOU want them to be and let others have them the way THEY want them to be. Please. I'm(maybe we're) not asking for much, so just please leave us with the tag we like and prefer. You don't make our life decisions for us, we don't for You. Especially since this isn't something extremely important. Really I'm begging You here, leave this tag alone. It doesn't do or change much, so just please.
PEOPLE GO WATCH SOME SHOWS GOD DAMMIT. Most of the groups You tag in romanized tag's are incorrect(unless they do Japanese stuff). If You watch shows You'll actually see that most of the groups are written in hangul(except for Miss A, SHINee and maybe a few more I don't remember) So stop using the incorrect tags. Also almost on all of the CD's they use the English names, but the correct tags are still hangul. For example: CHI CHI has it written on English on their singles, but their correct tag is in hangul because that's what they use on every show.
lol i wished this had more plays because i think the hangul is so much prettier than b2st... sigh  seriously stop being tag nazis b2st isn't even their official name anymore so i hate to say if any correction were to be made it would be to the beast tag 
I use B2ST, but I really don't mind people using this tag ._.' I mean, IT IS their name, they use the hangul all the time [unlike 2NE1, BIG BANG etc.]. What I do mind is people using BEAST since there's a bunch of different artists with this name and we don't have the need to use it, since we have B2ST and 비스트.