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The ad has been viewed 1.9 million times since it was published and has been mentioned in 193 blog posts and more than 80,000 Facebook status updates.

For a third week in a row, "dumb ways to die" and ad for Metro Trains Melbourne created by McCann Melbourne is the most shared ad.

Shared, on average, more than 700,000 times a week since it hit the web, the ad gained most traction on Facebook with more than 2.2 million shares.

Meanwhile, an ad from The White House, in which the President's dog inspects the Christmas decorations has been shared 79,739 times.

The ad, created in-house, comes just weeks after the presidential election that saw Barack Obama return to the White House for a second term.

Further down the chart, Victoria Secret's lip-sync video follows Abercrombie & Fitch.
The ad, by Madoff Productions, is the fifth most shared with 67,456 and features Victoria Secret Models recreating Justin Bieber's "beauty and a beat".

To view the most-shared viral ads from previous weeks visit the .

The chart, , ranks ads according to the number of times they have been shared on Facebook, Twitter and the blogosphere.

Ads launched more than 30-days ago are not included.