Wait, what? Seriously?No, not really. Jamba Juice is just taking a rather clever shot at McDonald’s, which just recently rolled out its own line of “Real Fruit Smoothies” in order to steal away some of the core business of smoothie slingers like Jamba Juice.But seriously, if you follow the suggested link at the end of the video and go to cheeseburgerchill.org, it takes you to JJ’s prank website which explains:”Is Jamba Juice getting into the burger business? No way. But it does seem some burger chains are getting into the smoothie business.”And what do you get for clicking through? A coupon for a buck off any smoothie at Jamba Juice. Not bad, right?Still, I’m a little sad there’s not a real cheeseburger smoothie. That song was catchy, and now I kinda want to try one…