 On May 7 the group performed in their first overseas concert held in Taiwan.The concert was organized by the Korea Tourism Organization, and also featured performances by U-KISS and Super Junior M.

In July, Girl's Day released a second EP titled "Everyday", with "Hug Me Once" ("한번만 안아줘") as the title track.The group released "Girls' Day Party #4" in September, with the track "Don't Flirt" ("너, 한눈 팔지마!