Rookie girl group MAMAMOO is gearing up for their upcoming debut, and they enlisted some star power in the form of CNBLUE's handsome guitarist, Jonghyun!

Appearing on set to play the role of a charismatic guitar player, it seems that he will play a large part in the new music video for MAMAMOO's debut.

Check out the behind-the-scenes video above and stay tuned for more MAMAMOO coming your way soon!

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