"Don't Be Happy" (행복하지마) is a collaboration digital single by MAMAMOO and Bumkey. It was released on January 9, 2014.
It is MAMAMOO's first pre-release single before their official debut with the mini album Hello in June 2014.
Track list[]
- "Don't Be Happy (행복하지마)" - 3:36
- "Don't Be Happy (행복하지마) (Inst.)" - 3:36
Video links[]
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