2013年以少年共和國的成員身份出道了（跟防彈同期），一開始可是壓過了防彈，但日子久勒，粉絲數逐漸下降，而防彈們也因為I need you 一夜成名，從此兩團的距離越來越遠了，近期源俊帶著少年共和國去參加了The Unit, 雖然整團只進了三人，而源俊也是其中一位，拿到了2Boom ，成功加入The Unit ，源俊！加油！希望這是你最後一個選秀1234 copyright protection972ＰＥＮＡＮＡaTL0vaWHx9 尼
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