While Blake Shelton and Adam Levine are the best of friends, they aren't the kind of friends to miss an opportunity to poke fun at one another. And lucky for all of us, we get to witness their shenanigans. During a recent promo for "The Voice," Blake Shelton clearly started why contestants should pick him, "Because he's not Adam." Oh and don't you worry, Adam had a comeback. He said, "I'm not Blake, and I own more than one shirt, unlike Captain Country."