Campaign Viral Chart: Musical flashmob plays its way to the top A flashmob for a Danish orchestra has been shared 17,067 times this week, playing its way to the top of the latest viral chart.

Campaign Viral Chart: P&G holds strong as Thinkbox debuts P&G's Olympic ad has held its position at the top of the chart for a third week in a row, while The Red Brick Road's follow-up to its Harvey the dog ad for Thinkbox makes...

Campaign Viral Chart: Roller skates beat drugs in new viral hit An ad in which kids say no to 'crack' and 'meth' in place of roller skating, has entered the viral chart in third place this week with more than 40,000 shares across social networking sites...

Campaign Viral Chart: P&G Olympics ad takes gold medal An Olympic ad from Procter & Gamble, which entered the Campaign Viral Chart in second place last week, has sprung ahead of TNT's "dramatic surprise", to take top position with 742,988 shares in the past...

Campaign Viral Chart: P&G Olympics ad shared over 300,000 times A touching ad from Olympic Games sponsor Procter & Gamble has shot through the chart to take second place with more than 300,000 shares this week, but TNT Benelux's "dramatic surprise" retains the top spot.

Which Olympic sponsor ads are most shared? With 100 days to go before the start of the London 2012 Olympic Games, an Adidas film featuring David Beckham is so far the most shared Olympic ad from an official sponsor.

Campaign Viral Chart: Dramatic surprise at the top of the chart A hidden-camera viral advert, in which a sleepy town square turns into chaos on the push of a button, has taken the top spot in this week's chart with more than one million shares in...

Campaign Viral Chart: April Fools' hat-trick from Google doesn't stop toddler dancing The video of two-year-old, dancing William Stokkebroe that knocked Kony 2012 off its viral perch last week has been shared over one million times in the last seven days - a 400,000 increase in shares...

Campaign Viral Chart: Dancing toddler knocks Kony off top spot A two-year-old boy dancing to Elvis's 'Jail House Rock' has become a viral hit, clocking up 943,754 shares and seven million views, after appearing in an ad for his parents' online dance supplies store.

Campaign Viral Chart: Kony clings on despite St Pat's Guinness boost The 'Kony 2012' film once again tops the viral chart, while a St. Patrick's Day boost has helped Guinness's 'round up your mates' rise to second position with more than 90,000 shares.

Campaign Viral Chart: Angry Birds burst in but Kony keeps spreading The 'Kony 2012' film is again top of the viral chart this week after being shared another three million times, while Angry Birds bursts in ahead of AMV's '"round up your mates" St Patrick's Day...

Campaign Viral Chart: Film plea for warlord's arrest goes stratospheric The 30-minute film to raise public awareness of the crimes of Ugandan warlord Joseph Kony and secure his arrest has been shared more than five million times this week.

Campaign Viral Chart: Sex, sex and sex in top three positions Sex appeal rules for the three most shared ads in this week's Campaign viral chart, with varying degrees of subtlety at work for US burger joint Carl's Junior, cleaning brand Clorox and sweet treat M&Ms.

Campaign Viral Chart: M&Ms Super Bowl climbs to top spot A Super Bowl ad for M&Ms has finally made it into first position following a two-week run in second place, while Ecotricity's collapsing cooling towers film has climbed into second place.

Campaign Viral Chart: Google's Valentine's doodle video is most shared Google's Valentine's Day animation is the most-shared ad this week, with more than 88,000 shares of the heart-warming cartoon in the past seven days.

Campaign Viral Chart: Chevy Super Bowl music video rises to top A music video for OkGo that doubled as a Super Bowl ad for Chevy is the most shared this week with more than 400,000 shares.

Campaign Viral Chart: Honda's Ferris ad is top of the class Honda's homage to 'Ferris Bueller's Day Off', featuring Matthew Broderick, tops this week's chart with 210,709 shares, beating Finnair and five other Super Bowl ads.

Campaign Viral Chart: 'the bark side' rises for VW Volkswagen's Super Bowl ad teaser, a follow up to last year's mini Darth Vader, was the most shared this week having been pipped at the post last week and coming in second place.

Campaign Viral Chart: Coca-Cola Tunisia takes top spot A Tunisian short film for Coca-Cola is the most-shared ad across the social web this week, picking up more than 59,000 shares in the past seven days.

Campaign Viral Chart: Vinnie Jones BHF ad comes in 'hard and fast' Vinnie Jones' ad for the British Heart Foundation, which premiered on the web before its TV debut, is the most-shared video this week with more than 53,000 shares across Facebook, Twitter and the blogosphere.