Mamamoo Discography Don’t Be Happy Collaboration Pre-debut Single January 9, 2014 Don’t Be Happy (with Bumkey) Don’t Be Happy (Instrumental) Peppermint Chocolate Collaboration Pre-debut Single February 11, 2014 Peppermint Chocolate (썸남썸녀) (with K.Will ft. Wheesung) Peppermint Chocolate (Instrumental) Heeheehaheho Pre-debut Single May 30, 2014 Heeheehaheho Heeheehaheho (Instrumental) Hello 1st Mini Album June 18, 2014 Hello Mr. Ambiguous (Mr. 애매모호) … Continue reading Mamamoo Discography