Music Everyday: 첫 사랑니(Rum Pum Pum Pum) by f(x)

I actually saw this on Facebook and wow looovee!

I just love the harmony of f(x)!
The chorus is so perfect!
And the drumming near 2:09 is so strong yet feminine.
I just love love love!
And gosh the video is so good.
I just want to steal their clothes (especially the Scottish styled ones).
I can't even explain it. -w-
Gah Krystal is soooo gorgeous! Jelly!!