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BuzzFeed Staff

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The people of YouTube collectively sing Katy Perry's unforgettable summer smash, "Last Friday Night."

The Internet Sings Katy Perry's "Last Friday Night"

<p>The breakdown is awesome. *Chills*</p>

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The Internet Sings Katy Perry's "Last Friday Night"

View this video on YouTube

The Internet Sings Katy Perry's "Last Friday Night"

View this video on YouTube

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