Over the course of 2011, we at Trends have been tracking popular YouTube phenomenon each and every day. So now that YouTube has released its list of the year's most-viewed videos, we went back to the archives to see how these clips became popular in the first place:

		1. "Friday" - Rebecca Black Why Rebecca Black Might Be Around Longer Than Other Viral Stars Rebecca Black Hits 100 Million Views
		2. Ultimate Dog Tease The Talking Dog Finds Millions of Fans
		3. Jack Sparrow (feat. Michael Bolton) Lonely Island Delivers Most Viewed Video of the Past Month
		4. Talking Twin Babies Why'd That Trend: Family Videos That Go Viral
		5. Nyan Cat What They're Watching: Nyan Cat
		6. Look At Me Now - Chris Brown ft. Lil Wayne, Busta Rhymes Look at Them Now: Karmin's Hip-Hop Cover Songs Go Big
		7. The Creep (feat. Nicki Minaj & John Waters)
		8. Maria Aragon - "Born This Way" Young Singer Goes Big After Gaga Tweet
		9. "The Force" The Super Bowl Ad That Went Viral Before It Even Aired
		10. Cat Mom Hugs Baby Kitten How We Came to Love a Cat Hug

And what about everything else?

Want more 2011 nostalgia? Check out YouTube.com/Rewind and the timeline below to dive in to some of the unique and interesting stories that played out on YouTube this year: