Kurt Cobain swept floors as a janitor at his alma mater. David Bowe was a delivery boy for his local butcher as a teenager. Ozzy Osbourne, fittingly, worked at a slaughterhouse among many other physically demanding jobs. Evan Fundora, vocalist and guitarist for the rising Austin-based grunge band SAP, worked at Panera Bread as a delivery driver. It was during these long drives from order to order that Fundora sang his heart out to some of his favorite bands: Alice In Chains, Pearl Jam, Soundgarden, among many others. However, it was Cobain’s vocals from the iconic grunge band Nirvana that…