Expectation (기대) is the first full-length album by Girl's Day. It was released on March 14, 2013 with "Expectation" serving as the album's title track.
A repackage titled Female President was released on June 24, 2013 with the "Female President" as the follow-up track.
The album was initially slated for a February 2013 release, however, it was delayed until March 14 for unknown reasons. On March 5, 2013, it was reported that member Yura will be the female lead for the group's music video for "Expect". The album was available for pre-order on South Korean online music stores on March 7, 2013, revealing the album cover and track list. On March 9, a 30-second music video preview for "Expect" was aired on the SBS variety show Star King, showing a more mature and sexy side to them. The official teaser for the music video was released on March 11, 2013, on the group's YouTube channel. Both the music video and album were digitally released at 12:00 p.m. KST.
Three months later, after the release on March 7, Dream Tea Entertainment announced that the group would come back on June 24 with a repackaged version of the album. It was also announced that the group will be also making a 'pool party' showcase for the re-release in the same day. The repackaged album, titled Female President, includes one new song, used as promotional track of it, and an instrumental of the track, replacing the last three tracks of the original album's track list, making the repackaged album's track list include thirteen tracks.
|"Girl's Day World" (intro)||So-jin, Kwon Seok-in, Choe Dok-wan||So-jin, Cosmic Sound||1:21
|"Expect"||Nam Ki-sang, Daniel R.||Nam Ki-sang, Kwon Seok-in, Choe Dok-wan||3:15
|"I Don't Mind"||Girl's Day, Kang Jeon-myung||Gregg Pagani, 1023Productions||4:48
|"Easy Go."||Han Sang-won||Han Sang-won, Yoon Young-min||3:24
|"Don't Trust Her"||Shina-e, Glory Face||Gentleman, Glory Face||3:35
|"White Day"||Nam Ki-sang, Daniel R.||Nam Ki-sang, Radio Galaxy||3:08
|"Oh, Great!"||Eva||Soul Jin||3:10
|"Twinkle Twinkle"||Nam Ki-sang, Park Keon-ho, Kang Jeon-myung||Nam Ki-sang||3:05
|"Hug Me Once"||Nam Ki-sang, Kang Jeon-myung||Nam Ki-sang||3:14
|"Oh! My God"||Kang Ji-won, Kim Ki-bum||Kang Ji-won, Kim Ki-bum||3:08
|"Don't Forget Me"||Nam Ki-sang||Nam Ki-sang||3:10
|"Don't Flirt!"||Nam Ki-sang, Kang Jeon-myung||Nam Ki-sang||4:26
|"Expectation" (inst.)||Nam Ki-sang, Kwon Seok-in, Choe Dok-wan||3:15
|"White Day" (inst.)||Nam Ki-sang, Radio Galaxy||3:08|
IV. Spotify Playlist
VI. Concept Pictures
VII. Commercial Performance
Expectation peaked at number 4 on Gaon Weekly Chart and at number 9 on Gaon Monthly.