The original group was named the "Holmby Hills Rat Pack" and met at the house of the couple Humphrey Bogart-Lauren Bacall. The original members were Frank Sinatra, Judy Garland and her husband Sid Luft, Swifty Lazar, Nathanial Benchley, David Niven, Katharine Hepburn, Spencer Tracy, George Cukor, Cary Grant, Rex Harrison, Johnny Van Heusen and Mike Romanoff.
During the last years of her life, Marilyn was friend with the members of the "Rat Pack" after her return to Los Angeles.
It was an informal group, only made up of men. For them, Marilyn became kind of a mascot.
This clan was a glamorous view of a street gang. Each member of this group was at President Kennedy's disposal, and John Kennedy could rely on them to organize his galas and fund-raisings.