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B1A4

B1A4 is a South Korean idol group under the management of WM Entertainment. The group debuted in April 23, 2011 with the single "O.K" after their first introduction to the public through a webtoon. They have released two studio albums, five EPs and various singles in South Korea. The group began their foray into the Japanese market late 2011 with a showcase and in 2012, they released their first compilation album that consisted of all the tracks from their...

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