#MyFavourite

Ketchum UK

Client: Mars

Tapping into the British culture’s irresistible urge to argue over even the most trivial things, we ignited the most sensational national argument of the ’24 Christmas season – over #MyFavourite Mars Celebrations® chocolate. By messing with chocolate ranking data, we trolled Brits city by city to make them go bonkers – telling them what their favourite chocolate brand was, even though it wasn’t – inciting a national social and media meltdown that led to an unprecedented +75% YOY Q4 sales blowout and elevated Celebrations to the fastest growing Top 30 snacking brand in the UK.