The archive · Marketing & Growth · Marketing decision · 2025
Bar B Q Plaza flips its smiling fish ball to sad — 404K meals in a week
Thailand's 37-year-old BBQ chain serves its iconic Kama-chan fish ball with a frown and no announcement — diners share it, demand the smile back, sales spike.
Bar B Q Plaza · Grey Thailand
What it had to solve
Bar B Q Plaza, a 37-year-old Thai dining favourite, was losing diners to newer barbecue chains and saw sales fall about 10% year on year, with no big media budget for a turnaround.
How it works
Bar B Q Plaza had been part of Thai dining culture for 37 years, but newer barbecue chains were taking its diners and sales had dropped roughly 10% against the previous year. With no budget for a conventional media campaign, the brand and Grey Thailand looked for the smallest possible change with the largest emotional charge — and found it in the product: the smiling fish-ball mascot, Kama-chan, served with every meal.
Without any announcement, the chain began serving Kama-chan with a frown. Diners at the table noticed the change, photographed it, and shared it — the surprise of seeing the beloved smile inverted sparked over 230,000 social-media reactions on day one and more than 200,000 online mentions in a single night.
Public outcry to restore the smile became the campaign's engine. CMO Rath Takulthai announced that Kama-chan would smile again once 100,000 meals were sold, and Thais took the challenge personally: 404,000 meals were sold in the first week, 299% above the sales target, with footfall up 24% and an 80% brand lift within a month.
The stunt won the ADFEST 2025 Grand Prix for in-store experience, a Gold, Silver and Bronze at Cannes Lions, a Gold at the ANDY Awards, and multiple Cairns Crocodiles trophies — proof that a one-element product change outperformed a full media buy.
Why it lands
- It turned the product itself into media: every plate served carried the story, so distribution cost almost nothing.
- The emotional flip — joy to sadness — created tension and curiosity that a conventional ad could not.
- The audience was given agency: their outcry and purchases literally decided when the mascot's smile returned.
- It worked within the constraint of a small budget, replacing paid reach with earned conversation.
What it did
Over 230,000 social-media reactions on day one; 404,000 meals sold in the first week, 299% above target; footfall up 24%, registered members up 38%, and brand lift of 80% within a month.
What you can take
A brand's most beloved detail can be the whole campaign: changing one familiar symbol turns the product into media, and making the audience's reaction part of the story turns nostalgia into sales.
Since then
The smile did return after the goal was met, closing the loop as a second wave of coverage. Grey Thailand and the brand rode the momentum through the 2025 award circuit — ADFEST Grande, Cannes Lions Gold/Silver/Bronze, ANDY Gold and Cairns Crocodiles wins — and the campaign became the year's reference case for turning an owned brand asset into earned media.
Sources
- SAD KAMA-CHAN — ADFEST 2025 winners details (In-Store Experience)
- SAD KAMA-CHAN — Grey case study
- How a cute fishball turned its frown upside down
- Grey: BAR BQ PLAZA's Sad Kama-Chan
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