Diet Coke and Mentos
The original Coke and Mentos experimenters, Fritz Grobe and Stephen Voltz, were able to create a fountain display similar to the famed Bellagio taxis. In less than a day, their video racked up 14,000 views online and went viral soon after. The reaction was so positive that they got offers for television shows and recognition from Mentos.
Grobe and Voltz are no strangers to the television circuit, having made several appearances over the years. In addition, they were also the first people to win a Webby Award for their video work. Most recently, they were featured in a music video for the band Weezer that included many other well-known viral faces.