Having ended promotions for "To Me", the Rainbow girls are back with their repackaged album and follow-up title track, "Sweet Dream", on this week's MBC Music Core. "Sweet Dream" was created by Japan's Daishi Dance, with assistance from AP and Park Se Hyun. The pop dance track aims to charm with its sweet, fantasy-like feel. Originally nominated to be the title track for their comeback promotions, the girls felt that "Sweet Dream" was better suited as a follow-up instead. And following the popularity of their 'black swan' dance for "To Me", Rainbow has prepared a new point dance choreography, called the 'Dragonfly Dance', where the members dance with their eyes closed on stage for their performance. Check it out below!