A young adult male stands in an indoor space with wooden flooring, wearing a white long-sleeve shirt with rolled-up sleeves and brown pants, amidst a group of formally dressed individuals. 3:51

"Somebody That I Used To Know," in perfect sync

A young man in a white shirt, sleeves rolled up, stands in a wood-floored hall full of people in their best clothes. Nobody here will stand still for long. more

They are the dancers of CDK Company, and the song is "Somebody That I Used To Know." Not long after the first verse starts, a dancer in sunglasses stands with both arms bent while the others bend down low nearby.

A person in sunglasses and a shirt stands with arms bent while other people bend down nearby, indoors. A headline runs in white letters across the lower third.Save
Early on, a dancer in sunglasses stands with arms bent while the others bend down nearby.

From there it is contemporary dance with a few curveballs. The group mixes styles, and the moves are playful but precise. The footwork is crisp, and the hardest moves look easy.

The real trick is the timing. A whole room of dancers moves as one, then splits into shapes and patterns that keep changing. One viewer compared it to a kaleidoscope, which is about right.

A young adult male stands in an indoor space with wooden flooring, wearing a white long-sleeve shirt with rolled-up sleeves and brown pants, amidst a group of formally dressed individuals. The headline runs in white letters across the lower third.Save
A young man in a white shirt, sleeves rolled up, stands in a wood-floored hall full of people in their best clothes.

Even the clothes and hair seem to be in on it, swinging with each turn instead of getting in the way. All that dressing up makes it funnier when the whole room starts to whip around.

The camera moves with them, slipping in close and finding angles that put you in the middle of the room. When the chorus arrives, "Now you're just somebody that I used to know," the group comes together on the wooden floor, and nobody pulls focus.

A group of people stands on a wooden floor, some looking down, with others gathered around them. A headline runs in white letters across the lower third.Save
As the chorus arrives, the dancers gather on the wooden floor, each one part of the same pattern.

Near the end, the whole group leans forward as one, arms stretched out, and holds the pose. It looks easy, which is the hardest look of all.

A group of people in a hall leans forward with arms extended, posing together. A headline runs in white letters across the lower third.Save
Near the end, the whole group leans forward with arms out in one shared pose.

Some of its biggest fans are old enough to have seen a lot of dancing. A former ballroom and Latin dancer, 68, called it the most creative choreography in years. A 62-year-old said those older bones ached just watching, and plenty of others keep coming back to see it again.

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