Fizz or Sizz

Today, The Coca‑Cola Company announces the launch of ‘Fizz or Sizz’, a playful, insight‑led campaign that transforms a familiar sensory moment into a mass participation experience.
Set in Japan, where fried chicken is hugely popular but not instinctively paired with Coca‑Cola, the campaign is built around a simple but surprising truth: the sound of Coca‑Cola fizzing is almost indistinguishable from the sound of karaage sizzling. By making sound the creative hero, ‘Fizz or Sizz’ turns this uncanny similarity into a nationwide guessing game — asking people one deceptively simple question: is it sizz or fizz?
Rolling out across radio, digital out‑of‑home and social media, the campaign invites audiences to listen and engage in real time. Correct guesses can reward participation with a chance to win a free Coke, daily over the course of the week‑long activation.
Rather than delivering a traditional product message, ‘Fizz or Sizz’ uses play, sound and immediacy to draw people into a broader cultural conversation about food, taste and refreshment. By gamifying the fizz of Coca‑Cola and placing it alongside the sizzle of freshly cooked food, the campaign subtly rewires cultural associations — making the two sensations feel inseparable in people’s minds.
The activation also demonstrates how mass media can feel participatory at scale. Across radio, outdoor and social channels, audiences are invited to actively take part rather than passively observe, creating a shared moment that feels intuitive, accessible and highly shareable.
Tish Condeno, Senior Director, Coca‑Cola Trademark Category, Coca‑Cola Japan said: “Sound has a way of triggering recognition in an instant. ‘Fizz or Sizz’ brings together two familiar noises that often blur together, inviting you to listen closely to the crackle of food and the first response of a drink opening or being poured. The result is a light, interactive moment for Coke lovers rooted in food and refreshment.”
‘Fizz or Sizz’ will run across Japan via radio, OOH, social and in‑store engagement touchpoints.
The campaign was developed by WPP Open X, led by Grey, supported by Ogilvy, WPP Production, and WPP Media.