( Billboard Promotion Poster ).Barbra & Frank ... The Concert that never was... starring Sharon Owens as Barbra Streisand & Sebastian Anzaldo as Frank Sinatra with Musical Direction by Rob Hyatt at the Rivera Hotel in Las Vegas, Nevada..June 1, 2008.© Walter McBride ...It is not probable that Barbra and Frank would have ever shared the same stage until now in Las Vegas. They never worked together except when they taped a duet in separate recording sessions, but it is tantalizing to think what it would have been like to have Barbra Streisand and Frank Sinatra teamed up for a concert tour. Near the end of the show, the tuxedoed Frank Sinatra turns to Barbra Streisand, who is attired in a stunning black and white gown, and says dismissive, why not go backstage and take a little rest and I will close the show. A moment of silence is followed by Streisand saying, in the trade mark Brooklyn accent, excuse me. The best concert that never was is playing in Las Vegas..