Barbra Streisand's finely tuned vocal instincts and velvety voice have made her one of pop's most enduring stars. Her decades-spanning catalogue spotlights how her voice can take on any style of music—the grand balladry of Empire State homage “New York State of Mind”, the pugnacious disco of “The Main Event / Fight”, the simply stated emotion of “Smile”—with gusto and sensitivity.