Famous as a member of the Rat Pack, who died on Christmas Day 1995?

Dean Martin (born June 7, 1917 – December 25, 1995) was an American singer, actor and comedian. One of the most popular and enduring American entertainers of the mid-20th century, Martin was nicknamed "The King of Cool." Martin gained his career breakthrough together with comedian Jerry Lewis, billed as Martin and Lewis, in 1946. They performed in nightclubs and later had numerous appearances on radio, television and in films.

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 men made films together, formed part of the Hollywood social scene, and were politically influential (through Lawford's marriage to Patricia Kennedy, sister of President John F. Kennedy).

They were legendary for their Las Vegas Strip performances. For example, the marquee at the Sands Hotel might read "DEAN MARTIN—MAYBE FRANK—MAYBE SAMMY." Their act consisted of each singing individual numbers, duets and trios, along with seemingly improvised slapstick and chatter. In the socially charged 1960s, their jokes revolved around adult themes, such as Sinatra's womanizing and Martin's drinking, as well as Davis's race and religion.