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YouTube Celebrates Its 10th Birthday with Blackalicious, Rick Astley, Grumpy Cat and More

Michael Becker / FOX
April 23: "Grumpy Cat" visits Jennifer Lopez and Ryan Seacrest on American Idol judges panel for a selfie.

YouTube capped off its month-long 10th birthday party this afternoon (May 28) with a retrospective video that covers everything from "animals" (screaming goats, Grumpy Cat) to the zoo (which those who know their recent history may remember as the subject of the first video uploaded to the site).

The animated short makes good use of Blackalicious' "Alphabet Aerobics" -- the song that Daniel Radcliffe covered to near perfection last fall -- as it takes that trip down memory lane. As Tim Partridge, creative director for the firm responsible (Flying Object) put it: “Our goal was to capture the richness of YouTube content from the past decade. The idea of using an A-Z framework and multiple filmmaking styles allowed us to play with the visual variety and outstanding creativity the platform has played host to.”

Oh, and a particularly lengthy appearance from one very important star.