YouTube's 20 Most-Shared Ads in December

Bob Al-Greene

1. "Rewind, YouTube Style 2012" (YouTube)

See if you can name all the references (and guest appearances) in this mashup of 2012 culture.

Click here to view this gallery.

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In the last month of 2012, the most-shared YouTube ads included some favorites from earlier in the year.

The most popular was YouTube's own blowout year-end wrap-up/mashup. The hilarious music video, set to the year's defining pop hits, "Gangnam Style" and "Call Me Maybe," brings in viral stars like PSY, Felicia Day and Jenna Marbles. With callbacks to a plethora of news events and videos throughout 2012, watching is like playing a game in itself. How much do you remember?

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The rest of the list has something for everyone, with videos of Victoria's Secret models and Abercrombie & Fitch guys singing and dancing for your viewing pleasure. You can also catch some amazing sports videos, no matter what you prefer: skateboarding, skydiving, motorsport, surfing or kayaking.

And if sports aren't your thing, there are some truly catchy (read: maddening) songs among these ads.

Check out the list, provided by Unruly, and let us know in the comments section if you have a favorite YouTube ad we should have mentioned.

Thumbnail image courtesy of GoProHero, via YouTube

This story originally published on Mashable here.