K-MUCH release the making of their MV for debut single 'Don't Know Anything'.

The boys arrived at the filming location early embracing the cold weather but still appeared energetic and showed their witty sides dancing to Bar Bar Bar's signature moves.

In their MV, Crayon Pop's Ellin also appeared and cheered for them during the filming. Watch the behind story of their MV showing how the boys transformed from quirky school boys to cool guys.