At 10 o'clock AM on the 3rd, f(x)'s new title track NU ABO will be officially released through various sites. NU ABO is a song that has a strong dance and powerful, unique perspective of the f(x) shown through their story and preference.
Another track 'Me+U' is about a student that has one-sided love for a math teacher. And the other track 'Sorry (Dear Daddy)' is gaining anticipation because it is a ballad duet between Krystal and Luna.
An SM Entertainment representative stated "f(x) enhanced itself to a new level with a powerful dance that will surely attract the attention of music fans.
On another hand f(x) plans to have a full-on promotion period with their title track 'NU ABO' starting on the 7th with the upcoming Music Bank.