Group name: OMG / Oh My Girl (오마걸)
Label: WM entertainment
Debut date: April 21, 2015 on SBS MTV’s “The Show"
Debut Song: Cupid


Stage name: Hyo Jung (효정)
Real name: Choi Hyojung (최효정)
Birth date: July 28, 1994
Hometown: Yangyang, Gangwon
Position: Leader, Lead Vocalist
Blood type: AB

- Winner of WM audition 2014.
- The ‘ice breaker’ of the group (makes the environment more lively). 
- Responsible and caring.

 Stage name: JinE (진이)
Real name: Shin Hyejin (신혜진)
Birth date: January 22, 1995
Hometown: Pohang, North Gyeongsang
Position: Vocalist
Blood type: A

 Stage name: Mimi (미미)
Real name: Kim Mihyun (김미현)
Birth date: May 01, 1995
Hometown: Born in Jeju Island, currently living in Changwon, South Gyeongsang
Position: Rapper, Vocalist 
Blood type: AB

- Winner of WM audition 2013.
- She participated in writing lyrics for ‘Hot Summer Nights’

Stage name: YooA (유아)
Real name: Yoo Yeonjoo (유연주)
Birth date: July 17, 1995
Hometown: Seoul, Gyeonggi
Position: Vocalist
Blood type: A

Stage name: Seung Hee (승희)
Real name: Hyun Seunghee (현승희)
Birth date: January 25, 1996
Hometown: Chuncheon, Gangwon
Position: Lead Vocalist
Blood type: B

- When she was a child, she appeared in Star King.
- Participated in Super Star K (2010) and was in Top 12.
- Winner of WM audition 2015.

Stage name: Jiho (지호)
Real name: Cha Yoon Ji 
Birth date: April 04, 1997 
Hometown: Okcheon, North Chungcheong
Position: Vocalist 
Blood type: A

- She was in B1A4’s Concert ‘BABA B1A4’, VCR of ‘Beautiful Target’ in 2012. 
- She has longest training period. 
- She is fluent in Japanese.

Stage name: Binnie (비니)
Real name: Bae Yoobin (배유빈)
Birth date: September 09, 1997
Hometown: Chuncheon, Gangwon
Position: Vocalist
Blood type: O

- She was a model in YG Entertainment when she was a child.
- She was a former Woolim Trainee.
- She can an fix any object.
- She was a child actress and played minor roles in dramas "Sungkyunkwan Scandal", "King of Baking Kim Takgu", "I Love You, Don’t Cry", "More Charming by the Day", and "Beethoven Virus".
- Drama ‘High School Love On’.

Stage name: Arin (아린)
Real name: Choi Yewon (최예원)
Birth date: June 18, 1999
Birthplace: Busan, South Korea
Position: Maknae, Vocalist
Middle School Attended: Dongduk Middle School
High School Attending: Seoul Performing Arts High School
Blood type: O

- Winner of WM audition 2013.

Their debut song: