Kevin Hart and Nick Cannon are both pretty comical people. Chances are they both are the pranksters of their friend groups. If you remember Kevin's show Real Husbands Of Hollywood, they've given a glimpse of their antics before. Well, it seems like they're back at it. Earlier this year, for Kevin's birthday, Nick gifted him a llama. Nick also made the comment that because he was having so many kids, it was only right that Kevin had another one, albeit furry, as well. To get Mr. Cannon back, Kevin Hart decided to put Nick Cannon's fatherhood skills to the test. Kevin bought billboards in LA, New York and Atlanta and put Nick's phone number on them. Naturally, everyone blew Nick's phone up. The prank war continues. See both the Llama video, the billboards and Nick's reaction to the public calling him below.