Growing up is weird. Very few of us ever end up doing that thing for a living that we imagined we might when we were kids. Even fewer end up doing the same thing for the rest of our lives that we were doing as teenagers, even if that thing happens to be making music with our friends. In the case of The Sidekicks, a teenage affinity for playing propulsive punk rock somehow, against all odds, managed to turn into a full-time life pursuit. After nearly a decade of making noisy rock music, The Sidekicks have the audacity to finally grow up and their newfound maturity is at the very core of their excellent new album, Runners in the Nerved World.