Opera singer Tim Blevins performs regularly outside San Francisco's Orpheum Theatre, where his powerful voice has become familiar to many passing through the Civic Center neighborhood.

Opera singer Tim Blevins performs regularly outside San Francisco's Orpheum Theatre, where his powerful voice has become familiar to many passing through the Civic Center neighborhood.

Add Yahoo as a preferred source to see more of our stories on Google. Opera singer Tim Blevins performs regularly outside San Francisco's Orpheum Theatre, where his powerful voice has become familiar ...