Ratpack

1. 

Frank Sinatra, Dean Martin and Sammy Davis Jnr were known everywhere as the original Rat-pack.

The Rat Pack was an informal group of entertainers, who made films and appeared together in Las Vegas casino venues. In the 1960s, the group featured Frank Sinatra, Dean Martin, Sammy Davis Jr., Joey Bishop, and (before falling out with Sinatra in 1962) Peter Lawford .
They appeared together on stage and in films in the 1950s and 1960s, including the films Ocean’s 11 and Sergeants 3