The Discovery Channel's yearly cash cow, Shark Week, returns on August 10th for another seven days of shark documentaries... both real and not so real. And to kick it off, here's their first trailer, featuring Parks & Recreation's Rob Lowe in what is "lit'rilly" the weirdest performance of his career. (Seriously, Japanese ad makers would look at this and say, "Okay, fine. That's weird.") Check it out.