Having released the audio teaser for their upcoming Japanese single album, "First" last week, Universal Music Japan has today released the MV teaser for 4minute's new title song Through their official Youtube channel, the only instrumental teaser shows the girls showcasing their charms through innocent, youthful and sexy concepts. Among the noticeable changes are Sohyun sporting short hair while Jiyoon has long straight blonde hair. Their album will come in 3 versions and will drop on October 27th in Japan. [gallery]