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Jungkook performed his solo song "Begin" in 2016. The song was released as part of BTS's second studio album, "Wings", which was released on October 10, 2016. "Begin" is a ballad that tells the story of Jungkook's journey as a trainee and his hopes for the future. The song was well-received by fans and critics, and it helped to establish Jungkook as a solo artist.