How These Brilliant Digital Billboards Are Delivering a Hair-Raising Message The viral campaign -- and a reimagined successor in the name of charity -- illustrate the kind of marketing magic that occurs when technology and humanity intersect.

By Geoff Weiss

Opinions expressed by Entrepreneur contributors are their own.

Last February, a digital advertising campaign in Sweden that appeared to respond to the comings and goings of bustling subway cars captured the imagination of local passersby -- and subsequently went viral the world over.

Electronic billboards were placed underground to promote a new haircare range from the Swedish brand Apolosophy, featuring models whose hair wafted wildly in the wind whenever trains approached stations.

The digital signage, which had been equipped with ultra-sonic sensors to monitor the arrival of trains, lent an uncanny effect and also touted the artful tagline: "Makes your hair come alive." Check it out.

Related: Market to Empowered Women: It's Ethical -- And It's Good for Business

Now, after having garnered substantial attention, the concept has been repurposed by Barncancer Fonden -- a Swedish nonprofit that raises money to fight childhood cancer -- for an even more hair-raising message.

The reimagined ads similarly feature a young girl named Linn whose hair starts whooshing as trains speed past -- until, suddenly, her hair flies off completely. Several commuters, as captured in this video by the foundation, gasp at the sight of the child's bald head, as a message appears onscreen, "Every day a child is diagnosed with cancer," alongside a mobile donation code.

In a rapidly evolving ad industry where "living pictures" are making a play to supplant traditional visual messaging, the Swedish campaigns illustrate the kind of marketing magic that occurs when technology and humanity intersect.

Related: Advertising's Next Frontier: Retroactive Product Placement

Geoff Weiss

Former Staff Writer

Geoff Weiss is a former staff writer at Entrepreneur.com.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Editor's Pick

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Buying / Investing in Business

Big Investors Are Betting on This 'Unlisted' Stock

You can join them as an early-stage investor as this company disrupts a $1.3T market.

Science & Technology

How AI Is Turning High School Students Into the Next Generation of Entrepreneurs

As AI reshapes education, students are turning school problems into products and building the future economy.

Starting a Business

The Hardest Parts of Being a Solopreneur (and How I've Learned to Handle Them)

Solopreneurship is on the rise, offering us freedom and independence — but lasting success depends on tackling its unique challenges with strategy.

Business News

Anthropic Is Now One of the Most Valuable Startups of All Time: 'Exponential Growth'

In a new funding round earlier this week, AI startup Anthropic raised $13 billion at a $183 billion valuation.