On March 31, 2011, Brave Brothers released two teaser images of the group, revealing the two concepts that the group would perform with.

2011–2015: Debut, Back to da Future, Re-Issue and hiatus īrave Girls at Superstar K 3 premiere, 2011.

Seo-a also gained attention for her previous career as a model for various magazines and commercials. Yejin also gained attention due to the fact that she was 'Miss Seattle' at the Miss Korea 2008 competition, and because she bears a resemblance to actress Kim Sa-rang. Hyeran was then revealed on March 17, and gained attention because of her resemblance to singer Son Dambi and because of old dance rehearsal videos that led to her name being featured on video sites like Mgoon. She is the niece of Shin Ha-kyun, an actor known for his role in Welcome to Dongmakgol and Sympathy for Lady Vengeance. On March 14, 2011, Eunyoung was revealed as the leader of Brave Girls. On September 21st 2010, Brave Brothers revealed he is launching a new 4 member hiphop girl group called Brave Girls. 1.4 2021–present: Mainstream breakthrough, Summer Queen, After 'We Ride' and Thank You.1.3 2016–2020: Lineup changes, High Heels and Rollin'.

1.2 2011–2015: Debut, Back to da Future, Re-Issue and hiatus.

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