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ZPZG previously introduced themselves through their debut stage on 'M! Countdown' on the 25th and released their digital single the following day which is the work of BNR's�MasterKey. The song describes a guy who is going crazy over a girl who he met for the first time.�ZPZG consists of Kahn, Kang, Gyum, and Jihoon.

Listen to their catchy debut song!