Since 1991, Adam Gardner, along with his band Guster, have been making a stir with their albums and a smash with their live shows. Ever since their humble beginnings at Tufts University, Guster have always sought to outdo themselves. They sell out New York's fabled Radio City Music Hall one year and perform with the Boston Pops at Symphony Hall the next. They sell out a 33-date college tour, and this past spring founded the eco-friendly Campus Consciousness Tour, with buses powered by biodiesel and performances powered by wind power. It's in this overachieving band's nature to one-up itself.