Which company holds the Guinness World Record for the 'Most people unwrapping candy simultaneously' as part of a product launch campaign?

The advertising world has seen some extraordinary campaigns that have broken world records in various ways. These campaigns pushed boundaries in terms of scale, reach, creativity, or impact. Test your knowledge about these record-setting marketing achievements that made their way into the Guinness World Records book and marketing history.

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Coca-Cola (during their Share a Coke campaign)
Cadbury (for their Dairy Milk chocolate bar in 2012)
M&M's (for their personalized candy launch)
Kit Kat (for their 'Have a Break' campaign anniversary)