As reported previously, CSJH's Dana and Sunday will be making a comeback as a unit group. To crank up the anticipation, SM Entertainment unveiled two new teaser photos today! Dana and Sunday will return to the music scene with their new track, "One More Chance"; its teaser video will be released on July 6th. Fans will be able to watch the video through SM Entertainment's YouTube channel and official Facebook page. As for the pictures, they're particularly stunning since the girls have been gone for four years. Their mature style transformations are causing a lot of buzz over the sound of their new track. They will make their comeback on the 8th through KBS's 'Music Bank', so stay tuned! Source: TV Daily via Nate