Sojin
- Birth Name: Park So-Jin
- Birthday: May 21, 1986
- Position: Leader, Lead Vocalist
Jihae
- Birth Name: Woo Ji-Hae
- Birthday: May 14, 1989
- Position: Vocalist, Main Rapper
Yura
- Birth Name: Kim Ah-Young
- Birthday: November 6, 1992
- Position: Vocalist, Rapper, Main Dancer
Minah
- Birth Name: Bang Min-Ah
- Birthday: May 13, 1993
- Position: Main Vocalist, Visual
Hyeri
- Birth Name: Lee Hye-Ri
- Birthday: June 9, 1994
- Position: Vocalist, Lead Dancer, Maknae
Girls Day
History
DreamTea Entertainment started Girl's Day promotions before their debut with the creation of an official Cafe, YouTube channel, and Twitter accounts for the group and each member. A forum made by fans was also recognized by the company as their official international forum. The group also released dance flash mobs before their debut on the commercial and entertainment districts of Seoul gaining much interest.
On July 7, the group released their first MV, "Tilt My Head", and two days later their debut mini-album "Girl's Day Party 1".
Only two months after their debut, on September 12, it was announced through the group's official Twitter that members Ji Sun and Ji In left the group and two new members would be added to the group: "Two of our precious members of Girl's Day are to be replaced. They are Ji Sun and Ji In. Ji Sun will study music more to find her own character in music, as she wanted. And Ji In is attracted in acting so she will concentrate on acting career. Two days later, on September 14, the two new members were announced, Yura and Hyeri. On October 29, the new line-up released the group's second digital single, "Girl's Day Party 2". On October 30 the MV for their lead track, "Nothing Lasts Forever" was released.
In December 2010, Girl's Day got their first TV-show along with boyband U-KISS. The show, "We Are Dating", is a spinoff of the hit TV-show We Got Married and paired three members of each group on the first season.
On March 17, 2011, Girl's Day released their 3rd single "Twinkle Twinkle".
On May 17, 2011, Girl's Day had their first oversea concert in Taiwan with U-KISS and Super Junior M.The concert I Love You Taiwan - We are friends Concert(Traditional Chinese:사랑해(莎朗嘿) 台灣! WE ARE FRIENDS 演唱會) was held by Korea Tourism Organization Taipei, Taiwan Office in Taipei International Convention Center,TICC.
On July 3, 2011, Girl's Day announced their comeback with their second mini-album "Everyday", to be promoted with the title song "Hug Me Once". The teaser for the music video was uploaded on that same day. The full music video was released on July 6, 2011 along with the mini album. Along with the title song "Hug Me Once", the album contains a new track called "Young Love", two previous digital singles "Nothing Lasts Forever" and "Twinkle Twinkle", and an instrumental version of "Hug Me Once". Girl's Day are scheduled to begin their comeback performances on the July 8th episode of Music Bank.
sumber : wikipedia