Recently, it was announced that IU is making a surprise comeback this month. The teasing for her new release begun with an image on September 7. In the album cover, IU continues the vintage concept from her latest album 'Palette'. 

SEE ALSO: IU to become the first Korean solo artist to hold a show at the Philippine Arena in June

The full release of 'A Flower Bookmark Two' is set for September 22.