A group of Zumba class ahjummas were in for a special treat as they got a chance to see MONSTA X perform right before their very eyes. MONSTA X members were stunned when they realized they had to dance inside a Zumba class in the midst of an energetic bunch in their workout outfits, while the idol stars were dressed in their fancy stage costumes.

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Watch as the Zumba students cheer on the idol group as they show off their choreography regardless of the random timing, causing viewers to laugh out loud.