 The remaining four members returned with the song "Don't Forget Me" ("나를 잊지마요") from "Girl's Day Party #5".In February 2013, Girl's Day released the single "White Day", followed by their first full-length album "Expectation" on March 14.The album's title track, "Expectation" ("기대해"), became a commercial success and was awarded the 'Long-Run Song of the Year' award at the third Gaon Chart K-Pop Awards and ranked 36th overall on Melon's digital annual chart.