Yesterday, the ladies of Rainbow unveiled two teaser photos depicting the concept for their follow-up promotions. Today, they've confirmed that they will indeed by making their return with "Sweet Dream"! On June 22nd, the girls will be releasing a re-packaged version of their second mini-album, "To Me", which includes a new track titled "Sweet Dream". The song was created by Japan's�Daishi Dance, as well as AP and Park Se Hyun. The pop dance track aims to charm with its sweet, fantasy-like feel. The girls revealed that the song was originally nominated to be the title track, but they felt that it was better suited as a follow-up instead. Following the popularity of their 'black swan' dance, Rainbow has prepared a new point choreography called the 'Dragonfly dance', where the members dance with their eyes closed on stage. They'll be performing it for the first time on the June 23rd episode of Mnet's "M! Countdown". Source + Photos: Hankyung via Naver