Volkswagen
The Volkswagen ad has been shared 5.3 million times since its launch, according to Unruly's analytics system, which counts the number of shares across Facebook, Twitter, and on blogs.
Of course many of our favorite Super Bowl ads, like Apple's 1984 commercial and Budweiser's "Wassup" video, have not made it onto the list. The broadcast of many iconic Super Bowl ads pre-dated social platforms like Facebook and Twitter going mainstream.
Check out the top 10 most-shared Super Bowl ads of all time - a roundup of some of the most popular ads ever to air during the big game.