The 10-member a cappella group has achieved things they'd never anticipated since forming as students at Indiana University in 1996, including signing a major-label deal with Atlantic Records, embarking on nationwide multi-city tours, having their story optioned by DreamWorks for an upcoming feature film, and becoming a global sensation that has helped usher the instrument-free musical style into mainstream consciousness and reinvented the idea of a cappella on the modern pop landscape.