Classic female blues singers from the 1920s through the '50s, from the lowdown dirty Beale Street blues to the sanctified gospel of the storefront churches.
Sinatra's artistry is so all-encompassing you could easily spend your entire life listening to no one else. But even the most fanatical Frank lovers might want to mix it up once in a while, so here's a batch of vocalists bound to appeal to admirers of Ol' Blue Eyes.