The Label that
F(x) is signed to
(SM Entertainment) is considered one of the
Big Threes in Korea, the others being
JYP Entertainment and
YG entertainment. I wouldn't personally say that F(x) is underrated but SM definitely puts most of their of money in their other big groups especially since a new group has debuted this year. Despite all that SM still made
F(x) a star.
This is not all their song, just some of my favorite (in order of release)
From left to right: Sulli Amber Krystal Victoria Luna