Marketers and advertisers, the digital ad game has been changed forever as far as I am concerned. I am sure that this has been done before, but I have never seen it. Check out this digital subway ad in Sweden for hair-care products, and then check out what happens as a train passes.

According to Ad Week:

Ad agency Akestam Holst and production company Stopp produced the ad for Apotek Hjärtat’s Apolosophy products. Stopp in Stockholm says the ad was scheduled to be just a one-day stunt. But Clear Channel loved it so much that they kept it live for five more days “as a way for them to show the opportunities their screens can offer.”

Excuse me why I go buy some hair products.