Frank Sinatra captured by photographer William "PoPsie" Randolph during a 1943 concert. Author Ben Yagoda points to Sinatra as one of the interpreters who helped revive the Great American Songbook. William "PoPsie" Randolph/Courtesy of Riverhead hide caption

itoggle caption William "PoPsie" Randolph/Courtesy of Riverhead

The singer's simple and exquisite vocal style defined her dynamic and successful career. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images