Pepsi's spot starring music megastar Beyonce is the most-shared ad this week after generating 226,737 shares across Facebook, Twitter and the blogosphere.
Campaign Viral Ad Chart
Google's video ads for its range of products dominate this week's viral chart, after five of the internet giant's April Fools ads racked up a combined 739,189 shares across the social web.
Twitter's ad, celebrating its seventh birthday, has been shared more than 28,000 times this week, but Pepsi Max's hidden-camera viral, starring Nascar's Jeff Gordon, remains in first place.
A Brazilian ad for Dove's Men+Care range of shampoo, created by Ogilvy & Mather Brazil, has been shared 232,831 times to become the third most-shared ad of the week.
A Pepsi Max ad, created by TBWA\Chiat\Day, is this week's most-shared ad, which features disguised Nascar driver Jeff Gordon taking an unsuspecting car salesman on a test drive.
The Simpsons, the US cartoon family, features in this week's viral chart, with an in-house ad from Fox spoofing the 'Harlem Shake' shared more than half a million times.
Code.org, the non-profit learning foundation, tops this week's chart with a manifesto featuring technology wizards Mark Zuckerberg, Bill Gates and Jack Dorsey.
Google's futuristic 'Project Glass' has returned to the chart this week with a video demo from Google Creative Labs, which has been shared 245,464 times.
David Beckham's ad for H&M has risen to be the most-shared ad this week, while viral sensation Sweet Brown makes the most of her internet fame to promote Shortline Dental in the US.
In a chart dominated by Super Bowl ads, Guy Richie's H&M spot, starring David Beckham, is the third most-shared this week.
Diet Coke's "hunk", brought back to celebrate the brand's 30th birthday, joins a host of Super Bowl ads in this week's most-shared virals.
Three Nike ads are in the most-shared chart this week, with footballer Cristiano Ronaldo leading the celebrity fronted spots by Wieden & Kennedy.
Nike's estimated £75m new mega star and number one golfer, Rory Mcllroy, goes head-to-head with fellow brand ambassador Tiger Woods on a golf course in this week's most shared ad.
Romeo Beckham, the 10-year-old son of football superstar David and former Posh Spice Victoria, has entered the Campaign viral chart for the first time, in an ad for Burberry.
Google and YouTube's reviews of 2012 dominate this week's viral chart, with Fiat taking third place with its rap about motherhood.
Kobe Bryant and Lionel Messi put their talents to the test when they vie for a fan's attention in a campaign for Turkish Airlines, which leads this week's run down of the most-shared ads.
Microsoft's Internet Explorer's fight back against "IE haters" is the fourth most shared ad this week, securing just under 79,000 shares in the past seven days.
Teen sensation Justin Bieber features twice in the viral chart this week, returning to star in Macy's Christmas ad for a second year, and plugging his own fragrance.
Metro Trains Melbourne's "dumb ways to die" ad claims the top spot in this week's chart, with nearly 20 million views, while John Lewis falls to sixth place.
Red Bull has claimed another viral chart victory with a five-minute video that has been shared more than half a million times this week, while John Lewis's Christmas ad takes third place.
Darth Vader's tour of Disneyland could only manage second place in this week's viral chart thanks to the comedy fantasy of Air New Zealand's 'The Hobbit'-themed safety video.
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