"Dumb Dumb" is a digital single by Giant Pink, Jane Jang and PERC%NT. It was released on August 18, 2017 as the LISTEN's 12th release. It is a remake of Red Velvet's song of the same name and is part of the "Snowball Project" by SM Entertainment and MYSTIC Entertainment. To follow its creation, the creative development was made from the 27th to the 48th episode of the show.

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