Dean Martin was an American singer, actor, comedian and television host. Nicknamed the "King of Cool", he is regarded as one of the most popular entertainers of the 20th century. 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 and television and in films. Following an acrimonious ending of the partnership in 1956, Martin pursued a solo career as a performer and actor. He established himself as a singer, recording numerous contemporary songs as well as standards from the Great American Songbook. Martin became one of the most popular acts in Las Vegas and was known for his friendship with fellow artists Frank Sinatra and Sammy Davis Jr., who together with several others formed the Rat Pack.
Starting in 1965, Martin was the host of the television variety program The Dean Martin Show, which centered on Martin's singing and comedic talents and was characterized by his relaxed, easy-going demeanor. From 1974 to 1984, Martin was roastmaster on The Dean Martin Celebrity Roast, a popular show that drew celebrities, comedians and politicians.