YouTube’s 20 Most-Shared Ads in November

1. 1. Dumb Ways to Die (Melbourne Metro)

   This hilarious dark humor campaign was launched by the Metro Trains Melbourne to reduce accidents on the rails network. The ad shows a series of characters dying in very weird and dumb ways. Like exposing their private parts to piranhas or setting themselves on fire. These dumb accidents are then likened to dying in preventable train accidents, like running across the platform.

2. 2. The Athlete Machine (Red Bull Kluge)

   Red Bull has excelled in ads featuring extreme sports athletes or creative ways to do simple tasks. In this commercial, the energy drink company somehow combines the two, with athletes going through a series of klug machine mechanisms.

3. 3. An Unexpected Briefing (Air New Zealand)

   Air New Zealand and WETA, the visual effects company behind the Lord of The Rings and the upcoming The Hobbit, teamed up to deliver this aircraft safety video. You know, like those boring ones that they show before departure. This one instead of human steward and passengers features, obviously, hobbits, elves and dwarfs.

4. 4. Call of Duty – Black Ops 2 (Surprise) (Activision)

   Ever imagined how Call of Duty would look like in real life? Then you need to watch this amazing live action trailer directed by Guy Ritchie.

5. 5. I'm Really Proud of All of You (President Obama)

   Even though Election Day seems like ages ago, this video, in which Obama thanks supporters and campaign volunteers, was highly shared on YouTube.

6. 6. Marilyn and Chanel N°5 (Chanel)

   In this ad, Chanel releases previously unseen photos and unheard audio of the late star Marylin Monroe, who famously said that she Chanel was her favorite fragrance.

7. 7. Darth Vader: What Are You Going to Do Next? (Disney)

   Disney recently bought the rights to Star Wars, setting the geek world on fire. A new Star Wars is coming and fans of the saga are either delighted or frightened to death. But whatever happens with that, the new partnership is definitely going to be interesting to follow. For example, what would happen if Darth Vader spent a day at Disneyland? Find out in the commercial.

8. 8. Wink, Nod, Smile - Macy's presents "What's In Store?" (Macy's)

   In this funny video, Macy employee warn Justin Bieber not to use his signature move of wink, nod, smile to avoid what happened the year before, when the shoppers were too mesmerized by it.

9. 9. Pulcino Pio (Radio Globo)

   The success of this commercial which features a little chick singing a catchy song in Italian can probably only be explained as another Gangnam Style-type of event, in which a catchy song almost nobody understands somehow becomes a hit.

10. 10. The Journey (John Lewis)

    In this touching commercial, a snowman goes through a long journey across mountains, rivers and other hurdles until it reaches a city. His motive isn't revealed until the last scene, when we find out he did it to get a gift for his love, a snow-woman.

11. 11. GoPro HERO3: Black Edition - Smaller, Lighter and 2X More Powerful (GoPro)

    GoPro launched its new camera, the Hero3 with this commercial that begins with stunning views of mountains, beaches and cities. Then it builds up with spectacular footage taken by skiiers, surfers and kayakers.

12. 12. Revenge Or Love Of Country (Mitt Romney)

    Mitt Romney didn't win the election, and a big reason why was that Obama was better at delivering his message online. Nonetheless, this ad in which Romney asks his supporters to love for "love of country" instead of "revenge" was pretty successful online. Alas for Romney, it was not enough.

13. 13. Don't Let Mitt Turn Back Time On Women (American Bridge and JCER)

    In this political ad, Cher and Kathy Griffin call on voters to vote for Obama instead of Romney because of his support for GOP candidates with questionable views on women issues.

14. 14. Ken Blocks's Gymkhana Five: Ultimate Urban Playground (San Francisco) (DC Shoes)

    In this ad for DC Shoes, professional rally driver Ken Block drives through a gymkhana set on the streets of San Francisco, which, as you can expect, makes for a pretty spectacular video.

15. 15. Self-taught African Teen Wows M.I.T. (M.I.T.)

    Kelvin Doe is a 15-year-old engineering genius from Sierra Leone, where he uses electronic spare parts found in trash bins to assemble batteries generators and transmitters. He is completely self taught but he still was able to set up his own radio station.

16. 16. Justin Bieber's 'Girlfriend' Fragrance (Eau De Parfums)

    Justin Bieber makes the second of three appearances on this list with this ad for his fragrance 'Girlfriend.'

17. 17. Unlock the 007 in You. You Have 70 Seconds (Coke Zero)

    In an imaginative and hilarious as, Coca-Cola and its brand Coke Zero challenged unsuspecting train passengers to become James Bond for 70 seconds, dodging obstacles and beautiful women to earn free tickets to watch Skyfall.

18. 18. L'Invitation Au Voyage (Louis Vuitton)

    This suggestive Louis Vuitton ad is set in the beautiful streets of Paris and its world-famous Louvre museum, a win-win combination.

19. 19. Two-Year-Old Dances the Jive (Dancesport Studio)

    Can a 2 year-old dance the jive? The answer is in this hilarious video.

20. 20. Justin Bieber 'Girlfriend' Fragrance Commercial (Teaser) (Eau De Parfums)

    Teenage idol Justin Bieber closes out the list with yet another 'Girlfriend' fragrance commercial.

The world of YouTube ads had a little bit of everything, from eye-popping extreme sports ads by Red Bull and DC Shoes to touching Christmas ads as well as three -- no kidding, three -- videos featuring Justin Bieber.

The most shared, though, was the imaginative infomercial created by Melbourne's public transportation authority to warn commuters of the dangers of crossing the rails or standing too close to the platform edge. Titled "Dumb Ways to Die," the ad features colorful fruit cartoons dying in the most unimaginable ways. The dark humor and funny delivery turns out to be a very effective way of saying "Just be careful."

Political ads make an appearance too, on the heels of the U.S. elections, and there are a few videos that were present in our previous list as well.

Thanks to our friends at Unruly for compiling this list.