DETROIT (WWJ) It’s the dance craze that’s sweeping the nation — and the University of Michigan fully embraced “Gangnam Style” with a flash mob that took over the campus’ famous Diag on Friday.

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WWJ’s Kathryn Larson checked out the flash mob scene where students danced to the “Gangnam Style” song and replicated the wacky dance moves of South Korean singer PSY — to see what it was all about.

So why was Ann Arbor doing it “Gangnam Style?”

Freshman Drew Walker said, “A lot of us are feeling the stress and we need time to relax … Gangnam Style.”

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And while it feels like a cross between the hokey pokey and the macarana — Walker says it’s pretty simple to do.

“You cannot do ‘Gangnam Style’ without the shades,” she instructed participants, leading the dance with the chant: “Right, left, right, left …”

More than 1,000 people turned out for the flash mob after the idea was launched a few weeks ago on Facebook.

“Have fun and embrace who you are,” Walker said.

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Thanks to David Liu, Zachary Zarins, Paul Schnau and Jerry Shi for their contributions to the video.