Following the official release of their first full album, "Fiction and Fact", on May 17th, Mnet's official Twitter account recently teased their fans with a picture of B2ST's impending comeback stage on this week's "M! Countdown". B2ST will be performing two songs for their comeback - their title track, "Fiction", as well as their ballad song, "Rainy Days", which had received explosive interest prior to the official release of their album. It has been revealed that the staff of "M! Countdown" have been working hard on the group's stage setting to properly display the group's dance choreography and singing talents. Source: BNT News via Nate