'Squid Game's' global popularity has real-life ripple effects

The South Korean dystopian thriller series has taken the world by storm, causing Vans shoes similar to the ones worn on the show to dramatically spike in sales and inspiring TikTok challenges.

WATCH NIGHTLINE EPISODES:
https://abc.go.com/shows/nightline

ALSO AVAILABLE ON HULU: https://hulu.tv/2wSmSrZ

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