Frank created the group but the name "The Rat Pack" came from Lauren Bacall, who was dubbed the "den mother" and once remarked upon seeing the group: "I see the rat pack is all here." In her memoir Bacall wrote, "in order to qualify, one had to be addicted to nonconformity, staying up late, drinking, laughing, and not caring what anyone thought or said about us."
The Rat Pack is considered by many to be the founding fathers of Las Vegas, drawing visitors far and wide to their casino performances. All members have now passed, but their films, television performances and music left behind an iconic legacy in the entertainment history.