f(x)

f(x) is a girl group that hasent yet hit the extremely popular mark.  But they are talented and I enjoy them. Here is some information about the group.The five members of the pop group are Victoria Song, Amber Liu, Luna Park, Sulli Choi and Krystal Jung.
Dubbed as the Asia Pop Dance Group, f(x) made their official debut in September 2009 with single LA chA TA, followed by digital single Chocolate Love in October and first EP Chu~♡ in November. The girls released their first mini album NU ABO in May 2010 and starred in their very own variety show f(x) Koala in October.
f(x) also became popular product endorsers, featuring for Calvin Klein jeans, Ottogi food, and Cyon phones etc. (no longer contracted to some though).

Here are some links to some f(x) tunes! To find some yourself search them on youtube!!!!!!!!!

In Purple f(x) Chu
http://www.youtube.com/watch?v=Cnz2n5VcV4Q&feature=fvw
In black f(x) nu abo
http://www.youtube.com/watch?v=E8ZrPFMr_nY

In pink f(x) lollipop*some say its a copy of 2NE1 lollipop ft.BigBang*
                                                                                      http://www.youtube.com/watch?v=zrOUHn8uAXI

Hope you enjoyed f(x) for more google it!