Which advertising campaign holds the Guinness World Record for the 'Most Signatures on a Greetings Card' as part of its promotional strategy?

Think you know about the world's most extreme advertising achievements? This poll tests your knowledge about extraordinary marketing campaigns that broke world records. From the most expensive commercials to the most viewed ads in history, these campaigns didn't just promote products—they made history in the Guinness World Records. Challenge yourself to see if you can identify these remarkable advertising milestones that pushed creative and financial boundaries!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Coca-Cola's 'Share a Coke' campaign (2015)
Oreo's 'Daily Twist' 100th anniversary celebration (2012)
Cadbury's 'Thank You' campaign for the London Paralympic Games (2012)
Apple's 'Shot on iPhone' global photography campaign (2017)