Group FTISLAND revealed a handwritten teaser for their new album.

On September 12, they will be revealing their new album, THANKS TO, that is to celebrate their 6 year anniversary since debut.

Today, they revealed a picture of the members writing handwritten messages thanking their fans for supporting them throughout the years.

After releasing the teaser, they will be releasing the teaser video for their title song, "Memory."

They will make their comeback on September 23 and hold their 6 year anniversary concert on September 28-29.