The Year's Top 20 Most-Shared Video Ads

17 of 21

Three--The Pony

Number of shares: 1.06 million
The second appearance of Fleetwood Mac on the list, and the second time one of the band's songs has been paired with a lovable equine co-star. After stumbling upon this cosmic connection, British telecom company Three runs with it to great effect.
Click to watch video