Viral marketing continues to entertain us (and annoys us some times when it's badly executed), but here is a great example: Evian has a series of YouTube videos showing cute CGI babies dancing and jumping around with rollies. A month since the posting has started, the videos has been watched over 22 million times.
Details: Music is a remix of Sugarhill Gang's "Rapper's Delight", Ad agency: BETC Euro RSCG, Production company: Partizan, Director: Michael Gracey See the main video below, and also check out the original Evian Babies ad from 1998.