As I continue developing my marketing skills, I am always seeking innovative campaigns that push boundaries in creativity and strategy. One such campaign that truly captivated me is Dunkin’ Donuts’ Flavor Radio, a groundbreaking marketing initiative launched in Seoul, South Korea. Recommended by my marketing professor at SDSU, I delved into the details of this campaign, which has inspired me to think outside the box when creating memorable brand experiences.
The Campaign: Flavor Radio
In January 2012, Dunkin’ Donuts launched Flavor Radio, a highly interactive radio advertisement that went far beyond traditional audio ads. Instead of relying solely on sound, the campaign employed innovative technology to engage multiple senses, leaving a lasting impact on commuters in Seoul.
How It Worked:
Interactive Radio with Coffee Aroma
The campaign’s core feature was a voice recognition system that triggered a machine to release the aroma of freshly brewed coffee when the Dunkin’ Donuts jingle played on the radio. The combination of the recognizable jingle and the inviting scent of coffee transformed ordinary radio ads into an immersive experience.
Targeted Timing and Placement
Dunkin’ Donuts strategically targeted commuters during the morning rush hour—when people are most in need of a caffeine boost—and placed their stores near bus stops. The result? Once passengers exited the buses, they were enticed by the irresistible scent of coffee, making it incredibly convenient for them to stop by Dunkin’ Donuts.
Surprise and Delight
Pairing the unexpected aroma with the familiar jingle, Dunkin’ Donuts created an unforgettable sensory experience. It wasn’t just an advertisement—it was an engaging encounter that left the brand top-of-mind for coffee-seekers.

The Results: A Marketing Triumph
The Flavor Radio campaign generated remarkable results:
- Over 350,000 people experienced the campaign during its run.
- Visitor traffic to Dunkin’ Donuts locations surged by 16%.
- Sales at Dunkin’ Donuts stores near bus stops increased by 29%.
- The campaign successfully rebranded Dunkin’ Donuts as a serious coffee contender in Seoul, changing its perception from just a doughnut shop to a dominant player in the coffee market.

Why This Campaign Stands Out
The Flavor Radio campaign stands out for several reasons:
Innovation and Creativity
By merging coffee aroma with radio ads through voice recognition technology, Dunkin’ Donuts delivered an innovative, dynamic, and unforgettable marketing experience. The campaign breathed new life into traditional advertising by incorporating a multi-sensory approach.
Perfect Timing and Location
Targeting commuters during the morning rush hour and positioning stores near bus stops was an astute strategy. Dunkin’ Donuts understood consumer behavior and catered to it with precision.
Rebranding Success
Before this campaign, Dunkin’ Donuts was predominantly associated with doughnuts. Flavor Radio redefined the brand, establishing Dunkin’ Donuts as a formidable coffee contender in a competitive market like South Korea.
Could This Work in the U.S.?
While replicating this exact campaign in the U.S. would face regulatory and logistical hurdles, the core principles of the campaign are universally applicable:
- Sensory Engagement: Using multiple senses to create a deeper connection with consumers enhances the impact and memorability of an ad.
- Strategic Collaboration: Partnering with local infrastructure, like public transportation, allows brands to meet customers where they are, making advertising feel natural and less intrusive.
- Localized Marketing: Tailoring campaigns to fit the unique culture and habits of each market is essential for success.
As Susan Gilbert, CEO of Online Promotion Success, explained, “We have so many messages that are coming at us all day long, whether it’s coming through email or television, and we often tune a lot of them out. You can’t tune out your sense of smell.” This demonstrates the power of sensory marketing and how the scent of coffee in such a context became unforgettable.
The Flavor Radio campaign is a brilliant example of how creativity, strategy, and innovation can reshape a brand’s identity. This is the kind of marketing that inspires me as I continue growing in my field. What do you think? Could a campaign like this work in the U.S.? Let’s discuss in the comments!
Credits and Context
This campaign, Flavor Radio, was developed by Cheil Worldwide in Seoul, South Korea, for Dunkin’ Donuts. The creative team included:
- Creative Director: Thomas Hong-tack Kim
- Art Director: Seok-jin Shin
- Copywriters: Songha Lee, Jonathan Deblois
Sources
- Tam, Brian. “Scent of Coffee on Seoul Buses: What’s the Marketing Secret?” CNBC, August 15, 2012.
- Flavor Radio Campaign Details. Dunkin’ Donuts.
- Gilbert, Susan. “Marketing Secrets: Using Aroma for Business Success.” Online Promotion Success.
- International Coffee Organization. “South Korea Coffee Consumption Growth.”