Gallery: How YouTube Crammed an Entire Year Into Its Epic 'Rewind' Video
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Rhett and LInk (center) dance it out on the LA set of the Rewind video. (Expand the gallery to widescreen for larger images.)
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YouTube star Tyler Oakley gets his makeup done before his turn on set.
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Dance troupe Quest Crew nail their moves with Super Selfie.
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YouTube's *Nerdy Nummies* star Rosanna Pansino.
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Steve Kardynal with the Rewind "button."
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*American Ninja Warrior* sensation Kacy Catanzaro films her cameo.
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Jamie Casino, who gained fame for his Super Bowl commercial, on set.
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YouTubers FouseyTube and Stuart Edge on set.
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The Fine Bros. do their Ice Bucket Challenge bit.
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Ingrid Nilsen (aka MissGlamorazzi) films her segment.
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The dudes of Smosh on set.
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YouTube celebrity Michelle Phan preps her ice bucket.
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YouTube celebrity Michelle Phan on set.
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Nico Pueringer (left) and Sam Gorski of Corridor Digital.
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A cappella group Pentatonix.
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The guys of Corridor Digital film their scene.
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Nico Pueringer (left) and Sam Gorski of Corridor Digital.
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Viral star Action Movie Kid films his scene.
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Gabe "Super Selfie" Valenciano on the Rewind set.
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Anthony Padilla (left) and Ian Andrew Hecox (right) of comedy duo Smosh.
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The Rewind video even had its own 'spider dog.'
