Singer IU has become more sophisticated with her new album.

On September 23, she released her song, "Between the Lips" teaser video online and gained much attention for her more sophisticated and mature image.

In the video, she shows off her mysterious charm as her melodious voice is heard in the background.

Just like the title of her song, she wears a red lipstick to showcase her lips.

She will be releasing 7 different teaser videos before she releases her new album on October 7.

She will also be holding a showcase before the official release of her album.