Last year was a huge step forward for Moon Taxi — they released two CDs, one plugged in, one not, and made their TV debut on The Late Show with David Letterman. Earlier this week, the alt-rock five-piece became official members of Team Coco, playing Conan. But it hasn’t just been a walk in the park for the Nashville act; they’ve been working hard at it since 2006. With each record released, they’ve built on their jam-band sound. At times they’re a long-haired ‘70s rock band, and the next they’re on the cutting edge of what’s happening in the electronic rock scene.