B1A4

B1A4 is a South Korean idol group based in Seoul, formed and managed by WM Entertainment. The group is a male quintet consisting of their leader Jinyoung, rapper Baro, main vocal Sandeul, vocal and sub-rapper CNU, and vocalist Gongchan. They made their debut in 2011 with the release of their first EP Let's Fly which contained their debut single OK a rock and electronic infused pop track. They were first introduced to the public through a webtoon. They have released a studio album, 2 EPs and various singles in Korea. The group began their foray into the Japanese market last December 2011 with a showcase and in 2012 they released their first compilation album that consisted of all the tracks of their 2 EPs Let's Fly and it B1A4. Last June 27, 2012 the group released their debut single which is a remake of Beautiful Target. The single peaked at number 4 on the Oricon Chart with 32,000 units sold on the first day. The group's second single which is the Japanese version of Sleep Well, Good Night from their first repackaged album is set to be released on August 29.