Frank Sinatra and his dog, Ringo, at Sinatra's home in Palm Springs, California, in 1965. (LIFE.com)
Frank Sinatra watches Frank Jr., 21, emcee a TV show. (LIFE.com)
In Miami, Sinatra falls off his chair howling at a joke told by Joe E. Lewis. (LIFE.com)
Frank Sinatra in rehearsal, 1965. (LIFE.com)
Going blank while rehearsing for a nightclub, Sinatra tries to remember the lyric. (LIFE.com)
Newly released pictures of Frank Sinatra from 1965 provide a new window into the private life of the famed singer. See more photos of "The Voice" at Life.com.