Girl group T-ARA has officially made their comeback with their new album, AGAIN.

Today, they released their double title songs, "Number 9" and "I Know the Feeling" music videos online.

T-ARA stated that they hoped that after releasing this album that they would be able to hear that they have changed and upgraded their style in music.

In the revealed jacket photo, they are wearing black and white and showing off their sexy and wild concept.

Their double title songs show variety as one is a dance song while the other is a ballad, allowing them to showcase their skills.

You can watch the music videos below: