American actor and singer Frank Sinatra (1915 - 1998, left) with presidential candidate John F. Kennedy (1917 - 1963) at the Sands Hotel in Las Vegas, February 1960. (Photo by GAB Archive/Redferns)

American actor and singer Frank Sinatra (1915 - 1998, left) with presidential candidate John F. Kennedy (1917 - 1963) at the Sands Hotel in Las Vegas, February 1960.   (Photo by GAB Archive/Redferns)