Dean Martin man, Martin spent a lot of time with his family; as second wife Jeanne put it, prior to the couple's divorce, "He was home every night for dinner." As Martin's solo career grew, he and Frank Sinatra became friends. In the late 1950s and early 1960s, Martin and Sinatra, along with friends Joey Bishop, Peter Lawford, and Sammy Davis, Jr. formed the Rat Pack, so-called after an earlier group of social friends, the Holmby Hills Rat Pack centered on Humphrey Bogart and Lauren Bacall, of which Sinatra had been a member (The Martin-Sinatra-Davis-Lawford-Bishop group referred to themselves as "The Summit"
Frank Sinatra Jr. premiere episode of the 2010 CBS legal comedy-drama "The Defenders", as well as the show's series finale. On August 17, 2015, Sinatra sang "The Star-Spangled Banner" at Yankee Stadium. His father's recording of "Theme from "New York, New York"" is played following the end of every Yankees home game, and Sinatra Jr. performed the song at the 2014 Belmont Stakes. Sinatra's song "Black Night," written and sung by him, was used as the theme song to Rick Alverson's feature film "Entertainment" (2015), starring Gregg Turkington and John C. Reilly. Sinatra married Cynthia McMurry on October 18, 1998; they divorced on