"All right! Let’s kick this thing in the face!” he barks, as the band tears into their stringed instruments at breakneck speed. It's almost impossible to watch him perform more than a song or two without cracking a smile yourself. His exuberance is contagious, and it bleeds through into the music. Whether they're playing at a backyard house party in Texas, a punk-rock dive bar or a sprawling country music festival, crowds take notice. People put down their phones, pick up their drinks and start dancing.