How to Be a Fighter With MMA Champ Anthony Pettis

Lightweight champion MMA fighter Anthony Pettis stopped by What's Trending to show off his headphones, talk about the surging popularity of the UFC, and to talk about his signature move, a pretty badass jump kick.

But even Pettis has his fears. His biggest fear in the world, he says, is not being able to be a good father. And his career fear is not living up to his potential. That fear, we'd think, is slowly fading away considering what he's been able to accomplish in the UFC.

I mean, why would be afraid if you could do this?