It started with fans being upset about the lack of screen time their trainees received while others took up the entire time - and then fans noticed that some trainees weren't given mics to start with, meaning the staff had probably meant to cut them out even before the recording started.

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Trainees fans noticed didn't have mics: HIM's Park Sung Woo, Yuehua's Justin, The Vibe Label's Kim Tae Dong, Brand New Music's Kim Dong Hyun, Pledis's Choi Min Gi�and Hwang Min Hyun, Cube's Yu Seon Ho, Star Road's Takada Kenta, and Media Line's Lee Woo Jin.�

Fans are trending #???_???_??? (#AhnJoonYoung_Explain_Mics) to the 'Produce 101' PD and demanding an explanation.

What do you think of the controversy?