The Brown Eyed Girls (Hangul: beuraun aideu geolseu, Japanese: buraunaidogaruzu), often abbreviated as B.E.G., BG or beuageol (beu-ah-geol) is a South Korean girl group managed by Mystic Entertainment. The group consists of four members: JeA, Miryo, Narsha, and Gain. They debuted as an R&B/Ballad vocal group with "Come Closer (dagawaseo)" in 2006 and have since challenged themselves with a notable variety of different music genres. They rose to popularity in 2008 with "L.O.V.E" and their retro-dance number "How Come," and cemented their position in the K-pop world in 2009 with "Abracadabra", with its electronica-based genre, pioneering (albeit controversial) concept, along with its iconic and now globally recognized dance entitled 'The Arrogant Dance (sigeonbangcum)'--successfully ingraining themselves into modern popular culture.

The members branched out to solo activities once again. Starting with Miryo, releasing her self- produced solo album, MIRYO a.k.a. JOHONEY on February 1. She had a rocky start with two of the songs from her album banned in broadcasting stations. Namely, "Revenger," which according to SBS officials has lyrics depicting violence and the title track "Dirty" for the lyrics of the song, containing the word, "cross-eyed" which could be perceived as a derogatory term for the disabled thus forcing Miryo to change the lyrics to be able to perform on music shows.  On TV, Narsha made her acting debut with MBC's drama "Light and Shadow" playing the role of an aspiring singer Lee Jung Ja and followed by Ooh La La Couple as a goddess. The other members participated on reality programs. Gain became a CEO of a public relations company called 'Mental Breakdown' particularly for the show, "OnStyle's Launch My Life - Ga In's Fashion King." While Miryo was included in Mnet's hiphop program Show me the Money, collaborating with a rookie rapper to compete against other contestants for the top spot. Jea also became a fixed member of Immortal Songs 2 but she later left the show due to her solo album promotions and was replaced by Narsha which later on left the show also due to her musical "When A Man Loves."  On July 17, BEG released their digital single "The Original" of the hybrid soul genre - the genre the girls have originally debuted with. It has two tracks Come with me and the title track "A Midsummer Night's Dream" meant to be a gift to the fans who are still supporting the group despite it not being active at the moment. It was produced and composed by JeA. No promotional activities were done.  Gain dropped her second mini-album on October 5 "Talk About S" with the title track Bloom. The title track and won the top spot in M! Countdown. JeA also pre-released the track "Let's Hug" on December 28 from her upcoming solo album.  Before the year ended, fans of Brown Eyed Girls were finally able to see all four members up on stage together once again for their 19+ Rated 'Tonight 37.2 degC' concert.

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Why had they not been performing so much before that concert?