TWICE dropped behind-the-scenes footage for their "Like OOH-AHH" debut MV and teaser videos!

The girls are super adorable, expressing their nerves for their debut, some members saying they weren't nervous until they got to set and others saying they weren't as nervous as they thought they would be.

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They also talk about their fear of zombies and more, constantly showing cute aegyo to the camera.  They did not have to fret!  They had done a great job in their MV.