Image courtesy U.S. Corps of Engineers Maybe you've seen one or two of the "Harlem Shake" videos revolving around YouTube over the past weeks... or maybe you haven't seen any of them. If you're asking yourself, "What the heck is the Harlem Shake," well, let Wikipedia fill you in. We found this Harlem Shake video (above) on on YouTube irresistible. It features hundreds of Asian carp, an invasive species that inhabits many Midwest rivers. The fish like to launch themselves into the air when disturbed. Just one more way to have fun in a powerboat.