Girl's Day's highly anticipated comeback is here, and to celebrate the release of their 1st full-length album 'Expectation', the members shared their determination to achieve #1 on music charts.

Dream Tea Entertainment revealed, "Girl's Day will release their first full-length album 'Expectation' two years and eight months after their debut. This album concept will show a sexy style through a black-and-red theme."

Girl's Day expressed, "We feel really moved to finally release our full-length album. Since we really worked hard to make this album, we want to achieve #1 at least once and level up our popularity."

Girl's Day had their first comeback stage with "Expectation" on 'M! Countdown', so check it out here and the MV below if you missed it!