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The Happiest Time of My Life, Pt. 2 (feat. Yang Dail) · MC MONG · Yang Dail · Bae Won Bin · Unkwn code · Kim Geonwoo · COOLDDI · Dayday · MC Mong
CHANNEL 8
℗ 2026 K-POP Music IP Company, LTD.,under license to Kakao Entertainment
Released on: 2019-10-25
Lyricist: MC몽
Lyricist: Dayday (데이데이)
Lyricist: 쿨띠
Composer: 김건우
Arranger: 배원빈
Arranger: Unkwn code
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Views: 39,168
Published: June 30, 2026
Channels: MC MONG - Topic
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