Rat Pack Rat Pack The Rat Pack is a term used by the media to refer to an informal group of entertainers centered on the Las Vegas casino scene. Having its origins in a group of friends that met at the Los Angeles home of Humphrey Bogart and Lauren Bacall, by the 1960s, it was the name used by the press and the general public to refer to a later variation of the group that called itself "the Summit" or "the Clan", featuring Frank Sinatra, Dean Martin, Sammy Davis Jr., Peter Lawford and Joey Bishop among others; they appeared together on stage
Rat Pack was reportedly never called that name by any of its members – they called it "the Summit" or "the Clan". "The Rat Pack" was a term used by journalists and outsiders, although it remains the lasting name for the group. Often, when one of the members was scheduled to give a performance, the rest of the Pack would show up for an impromptu show, causing much excitement among audiences, resulting in return visits. They sold out almost all of their appearances, and people would come pouring into Las Vegas, sometimes sleeping in cars and hotel lobbies when they could not