Twenty-five musicians, from local bands like My Morning Jacket and Wax Fang, are organized into five groups through a lottery-based chance selection. The musicians then have twelve hours to create a band name and three to five songs (with a one cover-song limit). The five new groups then perform what they’ve created that evening in front of a waiting audience beginning at 10 p.m. Proceeds will benefit local charity Dare to Care and ACLU.