On September 5, 2007, Good Entertainment, the talent agency for the popular boy band Shinhwa, sent their trainee Yoobin to JYP Enterainment as a replacement for Hyuna. She made her debut three days later in the group’s live performance of “Tell Me” on Music Bank .[5] Their first full-length album, The Wonder Years, was released the following week, on September 13, 2007, with “Tell Me.” Due to the last-minute addition of Yubin, the album version does not contain her part; however, the …

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