LIFE The Rat Pack: The Original Bad Boys

They werent the original bad boys-Humphrey Bogarts Rat Pack of nocturnal revelers came before Frank Sinatras-but they were the famous ones Sinatra, Dean Martin, Sammy Davis Jr., Joey Bishop, Peter Lawford and a host of hangers-on and wannabes, male and female. In Las Vegas, a city that really did never sleep, and in Hollywood, where they teamed up in matinee movies highlighted by the original Oceans Eleven, they cut quite a swath through the 60s a martini-fueled adult answer to the Beatles and all else that was happening. LIFE was there to document all of the fun and frolic. John Dominis was sent out on the Sinatra beat, and grew to know and appreciate the singer, an avocational photographer who eventually allowed Dominis into his world-the world of the Rat Pack.