Girl's Day hinted at their transformation through the short preview seen on television, and now they're here to show you even more with a video teaser for�"Expectation"!

The girls have definitely gone through a change, once again setting aside their trademark aegyo concepts for a much stronger, and sexier image!

The title track "Expectation" is an electronic dance song which expresses a girl's determination to catch the handsome guy she has her eyes set on and change his playboy ways.

Girl's Day's first full length album ' Expectation' will be released on March 14, until then check out the teaser below!