Burger King "Moldy Whopper"

Burger King's "Moldy Whopper" campaign risked visual disgust to prove a point: after 34 days of decomposition, a Whopper without artificial preservatives still looked less appetizing than industry norms, yet the message drove a 36% increase in brand trust among millennial consumers. This bold approach won five Cannes Lions Grand Prix awards, outperforming #9 Spotify Wrapped in critical accolades by a factor of 2.5. With earned media coverage valued at $115 million and a 14% lift in U.S. sales for preservative-free menu items, it’s a masterclass in using shocking real-time proof over polished hype — and it achieved 30% more news mentions than the average fast-food campaign launch.